Old Roger Kemble is said to have been very unwilling that any of his children should follow that profession, in exercising which he had wandered far, suffered much, and profited sparingly. The unwillingness was natural, but he seems to have put it in practice when too late;—after he had allowed his attractive young people to enjoy some of the perilous delights of the stage. There are bills extant which show that some of them, at least, were playing in his company, when they were of tender years. When Sarah Kemble went to Guy's Cliff, it was with no idea of permanently leaving the stage; and if it be true, as alleged in the series of dramatic biographies, published by Symonds at the beginning of the present century, that Roger Kemble apprenticed his daughter Elizabeth to a mantua-maker in Leominster, and Frances to a milliner in Worcester, he narrowly missed marring their good fortunes. A similar vocation could not keep Anne Oldfield from the stage, and though Elizabeth and Frances Kemble were not actresses of extraordinary merit, they had not to regret that they abandoned the vocations chosen for them by their parents, for that which was followed by their parents themselves.

From Guy's Cliff, Sarah Kemble was ultimately taken by her persevering wooer, to whom her father reluctantly gave her at Trinity Church, Coventry, on the 6th of November 1773. The bride was in her nineteenth year. The married couple continued but for a brief period in the Kemble company. A month after the marriage, the name of "Mrs. Siddons" was, for the first time, in the playbill, at Worcester,[54] to Charlotte Rusport, in the "West Indian," and Leonora, in the "Padlock." Shortly after, Roger Kemble saw Mr. and Mrs. Siddons depart for Chamberlain and Crump's company, in Cheltenham. Here Mrs. Siddons at once took her place. Her Belvidera excited universal admiration. Lord Ailesbury, the cousin of the Pretender's wife, the Countess of Albany, mentioned her to Garrick; and Lord Dungarvon's daughter, Miss Boyle, directed her wardrobe, lent her many of her own dresses, and helped to make others for her with her own hands.

The Cheltenham "properties" were of the poorest; but there were some that even the Honourable Miss Boyle could not supply. Thus, for the male disguise of the Widow Brady, Mrs. Siddons found, on the night of performance, that no provision had been made; but we are told that a gentleman in the boxes lent her his coat, while he stood at the side-scenes, with a petticoat over his shoulders, and ready to receive his property when done with!

Garrick, on Lord Ailesbury's report, sent King down to see this actress of promise, and on King's warrant, engaged her for Drury Lane, at £5 per week. Others say that it was on the warrant of Parson Bate, of the Morning Post, who greatly praised her Rosalind.[55]

Her first appearance was on the 29th of December 1775, as Portia, "by a young lady," to King's Shylock. On January 2d, 1776, she repeated Portia, "by Mrs. Siddons." On the 18th,[56] she played Epicœne, but the part was subsequently assigned to another. On the 2d of February she acted Julia, in a new and poor farce, the "Blackamoor washed White," and on the 15th, Emily, in Mrs. Cowley's new comedy, the "Runaway," which part she had to surrender to Mrs. King. She was not more fortunate in Maria, her third original character, in "Love's Metamorphoses;" nor in a subsequent part, that of Mrs. Strictland to Garrick's Ranger, did she excite any further remark save that it was played in a pathetic manner. Her second appearance with Garrick was as Lady Anne to his Richard, which she repeated twice, the last time on June 5, in presence of the royal family. Five nights later, Garrick took his farewell of the stage, and Mrs. Siddons's engagement was at an end.

In Belvidera, for which she had been praised by King, she was not permitted to appear. Bate had commended her Rosalind, but she had to see it played by Miss Younge. Even Miss Hopkins, who became her sister-in-law, had better parts than she; and there was Mrs. Yates keeping Calista and Isabella, and Mrs. King playing Lady Macbeth, and Mrs. Canning (mother of the future statesman) allowed on the benefit of Reddish, whom she married, to play Monimia. Mrs. Siddons concluded that the other actresses who plagued Garrick's life out, hated her, because Garrick was polite and even kind to her. Sheridan alleged, as a reason for not re-engaging her, that Garrick did not recognise in her a first-rate actress (which she was far from being at that time). Woodfall thought her sensible, but too weak for London. "You are all fools!" said buxom Mrs. Abington.

The fragile, timid, faltering actress acquired strength in the country. Henderson, himself rising to excellence, acted with, and spoke well of, her. York pronounced her perfect, and Bath took her with the warrant, and retained her, its most cherished tragic actress, object of public applause and private esteem, till the year 1782. It was here, in truth, that the great actress was perfected, and that amid as many matronly as professional duties. On leaving the Bath stage, she pointed to her children as so many reasons for the step; and therewith went up, with no faint heart, this time to the metropolis. "She is an actress," said Henderson, "who has never had an equal, and will never have a superior." "My good reception in London," writes Mrs. Siddons, "I cannot but partly attribute to the enthusiastic accounts of me which the amiable Duchess of Devonshire had brought thither, and spread before my arrival." Poor Henderson!

With broken voice, the old nervousness, and a world of fears, she rehearsed Isabella, in Southerne's tragedy. When the night of the 10th of October 1782 arrived, she dressed with a desperate tranquillity, and many sighs, and then faced the public, her son Henry, then eight years of age, holding her by the hand, and her father, Roger, looking on with a dismay that was soon converted into delight. Smith played Biron, and Palmer, Villeroy,—but Siddons alone was heeded on that night, in which she gave herself up so thoroughly to the requirements of the part, that her young son, who had often rehearsed with her, was so overcome by the reality of the dying scene, that he burst into tears.[57] "I never heard," she writes, "such peals of applause in all my life. I thought they would not have suffered Mr. Packer to end the play."

With the echoes of the shouting audience ringing in her ears, she went home solemnly and silently. "My father, my husband, and myself," she says, "sat down to a frugal, neat supper, in a silence uninterrupted, except by exclamations of gladness from Mr. Siddons." With succeeding nights, the triumph went on increasing. The management gave her Garrick's dressing-room, and gentlemen learned in the law presented her with a purse of a hundred guineas.