In 1825, he sought a wider field of action and removed to Boston. Here he began business under the firm name of Wilder & Payson, in Union street, then as Wilder & Smith, in North Market street, and next in his own name, at No. 3, Central wharf. In 1837 he became a partner in the commission house of Parker, Blanchard, & Wilder, Water street, next Parker, Wilder, & Parker, Pearl street, and now Parker, Wilder, & Co., Winthrop square. Mr. Wilder is the oldest commission merchant in domestic fabrics in active business in Boston. He has passed through various crises of commercial embarrassments, and yet he has never failed to meet his obligations. He was an original director in the Hamilton, now Hamilton National, Bank, and in the National Insurance Company. The latter trust he has held over forty years, and he is now in his fiftieth year in the former. He has been a director in the New England Mutual Life Insurance Company for nearly forty years, and also a director in other similar institutions.
But trade and the acquisition of wealth have not been the all-engrossing pursuits of his life. His inherent love of rural pursuits led him, in 1832, to purchase a house in Dorchester originally built by Gov. Increase Sumner, where, after devoting a proper time to business, he gave his leisure to horticulture and agriculture. He spared no expense, he rested from no efforts, to instill into the public mind a love of an employment so honorable and useful. He cultivated his own grounds, imported seeds, plants, and trees, and endeavored by his example to encourage labor and elevate the rank of the husbandman. His garden, green-houses, and a forest of fruit-trees occupied the time he could spare from business, and here he has prosecuted his favorite investigations, year after year, for half a century, to the present day.
Soon after the Massachusetts Horticultural Society was formed, Mr. Wilder was associated with the late Gen. Henry A. S. Dearborn, its first president, and from that time till now has been one of its most efficient members, having two years since delivered the oration on the occasion of its fiftieth anniversary. One of the most important acts of this society was the purchase of Mount Auburn for a cemetery and an ornamental garden. On the separation of the cemetery from the society, in 1835, through Mr. Wilder's influence, committees were appointed by the two corporations, Judge Story being chairman of the cemetery committee, and Mr. Wilder of the society committee. The situation was fraught with great difficulties; but Mr. Wilder's conservative course, everywhere acknowledged, overcame them all, and enabled the society to erect an elegant hall in School street, and afterwards the splendid building it now occupies in Tremont street, the most magnificent horticultural hall in the world. In 1840 he was chosen president, and held the office for eight successive years. During his presidency the hall in School street was erected, and two triennial festivals were held in Faneuil Hall, which are particularly worthy of notice. The first was opened September 11, 1845, and the second on the fiftieth anniversary of his birth, September 22, 1848, when he retired from the office of president, and the society voted him a silver pitcher valued at one hundred and fifty dollars, and caused his portrait to be placed in its hall. As president of this association he headed a circular for a convention of fruit-growers, which was held in New York, October 10, 1848, when the American Pomological Society was formed. He was chosen its first president, and he still holds that office, being in his thirty-third year of service. Its biennial meetings have been held in New York, Philadelphia, Cincinnati, Boston, Rochester, St. Louis, Richmond, Chicago, and Baltimore. On these occasions President Wilder has made appropriate addresses. The last meeting was held September, 1881, at Boston, where he presided with his usual vigor and propriety, at the advanced age of eighty-three.
In February, 1849, the Norfolk Agricultural Society was formed. Mr. Wilder was chosen president, and the Hon. Charles Francis Adams, vice-president. Before this society, his first address on agricultural education was delivered. This was the first general effort in that cause in this country. He was president twenty years, and on his retirement he was constituted honorary president, and a resolution was passed recognizing his eminent ability and usefulness in promoting the arts of horticulture and agriculture, and his personal excellence in every department of life. He next directed his efforts to establishing the Massachusetts board of agriculture, organized, as the Massachusetts Central Board of Agriculture, at a meeting of delegates of agricultural societies in the state, September, 1851, in response to a circular issued by him as president, of the Norfolk Agricultural Society. He was elected president, and held the office till 1852, when it became a department of the state, and he is now the senior member of that board. In 1858 the Massachusetts School of Agriculture was incorporated, and he was chosen president; but before the school was opened congress granted land to the several states for agricultural colleges, and in 1865 the legislature incorporated the Massachusetts Agricultural College. He was named the first trustee. In 1871 the first class was graduated, and in 1878 he had the honor of conferring the degree of Bachelor of Science on twenty young gentlemen graduates. He delivered addresses on both occasions. In 1852, through his instrumentality, the United States Agricultural Society was organized at Washington. This society, of which he was president for the first six years, exercised a beneficial influence till the breaking out of the late civil war. He is a member of many horticultural and agricultural societies in this and foreign lands.
Col. Wilder, at an early age, took an interest in military affairs. At sixteen he was enrolled in the New Hampshire militia, and at twenty-one he was commissioned adjutant. He organized and equipped the Rindge Light Infantry, and was chosen its captain. At twenty-five he was elected lieutenant-colonel, and at twenty-six was commissioned as colonel of the Twelfth Regiment.
Soon after his removal to Boston he joined the Ancient and Honorable Artillery Company. In 1856 he was chosen commander of the corps, having four times previously declined nominations. He entered into correspondence with Prince Albert, commander of the Royal Artillery Company of London, founded in 1537, of which this corps, chartered in 1638, is the only offspring. This correspondence established a friendly intercourse between the two companies. In June, 1857, Prince Albert was chosen a special honorary member of our company, and twenty-one years later, in 1878, Col. Wilder, who then celebrated the fiftieth or golden anniversary of his own membership, nominated the Prince of Wales, the present commander of the London company, as an honorary member. They are the only two honorary members that have been elected by the company, and both were commanders of the Honorable Artillery Company of London when chosen. The late elegantly illustrated history of the London company contains a portrait of Col. Wilder as he appeared in full uniform on that occasion.
In 1839, he was induced to serve for a single term in the Massachusetts legislature as a representative for the town of Dorchester. In 1849 he was elected a member of Gov. Briggs's council, and the year following, a member of the senate and its president. In 1860, he was the member for New England of the national committee of the "Constitutional Union party," and attended, as chairman of the Massachusetts delegation, the National convention in Baltimore, where John Bell and Edward Everett were nominated for president and vice-president of the United States.
He was initiated in Charity Lodge No. 18, in Troy, N. H., at the age of twenty-five, exalted to the Royal Arch Chapter, Cheshire No. 4, and knighted in the Boston Encampment. He was deputy grand master of the Grand Lodge of Massachusetts, and was one of the six thousand Masons who signed, Dec. 31, 1831, the celebrated "Declaration of the Freemasons of Boston and Vicinity;" and at the fiftieth anniversary of that event, just celebrated in Boston, Mr. Wilder responded for the survivors, six of the signers being present. He has received all the Masonic degrees, including the 33d, or highest and last honor of the fraternity. At the World's Masonic convention, in 1867, at Paris, he was the only delegate from the United States who spoke at the banquet.
On the 7th of November, 1849, a festival of the Sons of New Hampshire was celebrated in Boston. The Hon. Daniel Webster presided, and Mr. Wilder was the first vice-president. Fifteen hundred sons of the Granite State were present. The association again met on the 29th of October, 1852, to participate in the obsequies of Mr. Webster at Faneuil Hall. On this occasion the legislature and other citizens of New Hampshire were received at the Lowell depot, and addressed by Mr. Wilder in behalf of the sons of that state resident in Boston.
The Sons celebrated their second festival Nov. 2, 1853, at which Mr. Wilder occupied the chair as president, and delivered one of his most eloquent speeches. They assembled again June 20, 1861, to receive and welcome the New Hampshire regiment of volunteers and escort them to Music Hall, where Mr. Wilder addressed them in a patriotic speech on their departure for the field of battle.