In 1845, Mr. Rice married Miss Augusta E. McKim, daughter of John McKim, Esq., of Washington, District of Columbia, and sister of Judge McKim, of Boston, a highly-educated and accomplished lady, who died on a voyage to the West Indies, in 1868, deeply lamented by a large circle of acquaintances and friends, to whom she had become endeared by a life of beneficence and courtesy.

After his graduation from college, Mr. Rice, having again engaged in mercantile business, pursued it with great earnestness, fidelity, and success. These qualities, together with his intellectual culture and his engaging address, eminently fitted him for public service, and early attracted favorable attention. He first served the city of Boston as a member of its school-board, in which capacity he gave much personal attention to the schools in all their various interests. To his duties in connection with the public schools were soon added those of a trustee of the lunatic hospital and other public institutions.

In 1853, Mr. Rice was elected a member of the common council, and a year later he was president of that body. In 1855, he received, from a large number of citizens of all parties, a flattering request that he would permit them to nominate him for the mayoralty of Boston. He reluctantly acceded to their request, and, after a sharply-contested campaign, was elected by a handsome majority. His administration of city affairs proved so satisfactory that he was re-elected, the following year, by an increased majority. By his wisdom, energy, and rare administrative ability, Mayor Rice gained a wide and enviable reputation. He was instrumental in accomplishing many reforms in municipal administration, among which were a thorough reorganization of the police; the consolidation of the boards of governors of the public institutions, by which much was gained in economy and efficiency; the amicable and judicious settlement of many claims and controversies requiring rare skill and sagacity in adjustment; and the initiation of some of the most important improvements undertaken since Boston became a city. Among these may be mentioned the laying out of Devonshire Street from Milk Street to Franklin Street, which he first recommended, as well as the opening of Winthrop Square and adjacent streets for business purposes, the approaches to which had previously been by narrow alleys. The magnificent improvements in the Back Bay, which territory had long been the field of intermittent and fruitless effort and controversy, were brought to successful negotiation during his municipal administration, and largely through the ability, energy, and fairness with which he espoused the great work. The public schools continued to hold prominence in his attention, and he gave to them all the encouragement which his office could command; while his active supervision of the various charitable and reformatory institutions was universally recognized and welcomed. The free city hospital was initiated, and the public library building completed during his administration.

Endowed with gifts of natural eloquence, his public addresses furnished many examples of persuasive and graceful oratory. Among the conspicuous occasions that made demands upon his ability as a public speaker was the dedication of the public library building. On that occasion his address was interposed between those of the Honorable Edward Everett ard the Honorable Robert C. Winthrop, both of whom were men of the highest and most elegant culture, possessing a national reputation for finished eloquence. The position in which the young Boston merchant found himself was an exceedingly difficult and trying one; but he rose most successfully to its demands, and nobly surpassed the exacting expectations of his warmest admirers. It was agreed on every hand that Mayor Rice's address was fully equal, in scope and appropriateness of thought and beauty of diction, to that of either of the eminent scholars and orators with whom he was brought into comparison. It received emphatic encomiums at home, and attracted the flattering attention of the English press, by which it was extensively copied and adduced as another evidence of the literary culture found in municipal officers in this country, and of American advancement in eloquence and scholarship.

At the close of Mr. Rice's second term in the mayoralty of Boston, he declined a renommation. While in that office, he was faithful to the men who had elected him, and abstained from participation in party politics farther than in voting for selected candidates. Originally, he was an anti-slavery Whig, and, upon the formation of the Republican party, he became identified with it.

When he retired from the office of mayor, in January, 1858, it was his intention to devote himself exclusively to business; but an unexpected concurrence of circumstances in the third congressional district led to his nomination and election to Congress by the Republicans, although the partisan opposition was largely in the majority. He continued to represent the district for eight consecutive years, and until he declined further service. He entered Congress just before the breaking out of the Civil War, and became a participant in the momentous legislative events of that period. He witnessed the secession of the Southern members from the two houses of Congress, and served through the whole period of the war and through one Congress after the war closed, embracing one half of President Buchanan's administration, the whole of Lincoln's, and one half of Johnson's. He served on the committees on the Pacific Railroad, on the District of Columbia, and on naval affairs, of which last important committee he was chairman during the two closing years of the war. In this last position he won much reputation by his mastery of information relating to naval affairs at home and abroad, and by his thorough devotion to the interests of the American Navy. Mr. Rice did not often partake in the general debates of Congress, but he had the confidence of its members to an unusual degree, and the measures which he presented were seldom successfully opposed. When occasion called, however, he distinguished himself as a debater of first-class ability, as was shown in his notable reply to the Honorable Henry Winter Davis, of Maryland, one of the most brilliant speakers in Congress, in defence of the navy, and especially of its administration during the war period.

Notwithstanding his arduous labors as chairman of the naval committee, Mr. Rice's business habits and industry enabled him to attend faithfully to the general interests of his constituents, and to many details of public affairs which are often delegated to unofficial persons or are altogether neglected. All of his large correspondence was written by himself, and was promptly despatched. Governor Andrew used to say that whenever he needed information from Washington, and prompt action, he always wrote to the representative of the third district.

At home Mr. Rice has filled many positions of prominence in business and social life. He was for some years president of the board of trade, and of the National Sailors' Home. He was president of the great Peace Jubilee, held in Boston in 1869, the most remarkable musical entertainment ever held in America, embracing an orchestra of twelve hundred instruments, and a chorus of twenty thousand voices. The opening address of this jubilee was made by Mr. Rice. He was also the chairman of the committee to procure the equestrian statue of Washington for the Public Garden in Boston, and of the committee that erected the statue of Charles Sumner. He delivered an appropriate address at the unveiling of each of these works, and also at the unveiling of the statue of Franklin, erected during his mayoralty in front of the City Hall. He has also been president of the Boston Memorial Society, and of the Boston Art Club, as well as of many other associations.

Mr. Rice was elected governor of Massachusetts in 1875, and was twice re-elected. His career as governor was characterized by a comprehensive and liberal policy in State affairs. While he was always ready to listen to the opinions and wishes of other men, his administration was strongly marked by his own individuality. His messages to the Legislature were clear and decisive in recommendation and discussion, and his policy in regard to important measures was plainly defined. He never interfered with the functions of the co-ordinate branches of the government; on the other hand, he was equally mindful of the rights of the executive. Always ready to co-operate with the Legislature in regard to measures which the welfare and honor of the Commonwealth seemed to him to justify, he did not hesitate to apply the executive veto when his judgment dictated, even in relation to measures of current popularity. He thoroughly reorganized the militia of the State, thereby greatly improving its character and efficiency, besides largely diminishing its annual cost. His appointments to office, though sometimes sharply criticised, proved, almost without exception, to have been judiciously made, and in many instances exhibited remarkable insight into the character and aptitude of the persons appointed.

Although elected a Republican, Governor Rice was thoroughly loyal to the best interests of the State in the distribution of patronage. Every faithful and competent officer whom he found in place was reappointed, regardless of his politics, and the incompetent and unreliable were retired, though belonging to his own party. It is, however, but fair to say, that in making original appointments and in filling absolute vacancies, he gave the preference, in cases of equal character and competency, to men of his own party.