Just as mysterious as Gibbs's given name is the identity of her husband. Miss Logan began to be billed as Mrs. Gibbs at least by June 20, 1787, when she appeared in Garrick's Miss in Her Teens. Who Mr. Gibbs might have been appears to be anyone's guess. However, George Coleman the Younger took a liking to the talented comedienne, and invited Mrs. Gibbs to join the company at the Haymarket Theatre. Later, Drury Lane hired her, but she quickly jumped ship to join the rival patent house at Covent Garden.
Gibbs continued to perform at the Haymarket during the summers while Covent Garden was closed. The smaller Haymarket, with its lighter fare, seems to have agreed with her comic talents. Coleman created a number of roles for her in his plays John Bull, The Heir at Law, and Blue Devils. She was frequently compared with Dorothea Jordan, the comic actress who became the mistress of the future King William IV. Gibbs had a less exalted lover, but one of consequence, at least in theatrical circles. For many years, she lived together with Coleman.
Coleman and his wife had eloped to Scotland in 1784, and then had their union ratified by a second ceremony four years later. Unfortunately, it was apparently not a happy marriage. Gibbs was better suited for him, and when he delayed finishing a play, she reportedly would harangue him until he completed it. In any case, she was frequently received as Coleman's wife, in spite of their different last names.
Here's how her biographer described Gibbs in 1826:
Mrs. Gibbs's voice is peculiarly pleasing; her person
still retains sufficient marks of beauty, to tell us, what an
exquisite creature she once was; her eyes (what eyes they
were!) are blue; her complexion light; her figure was
always plump, and has of late years been peculiarly so.
I cannot trace her death year, but she seems to have entertained audiences well into her 50s at least.