Louisa Fontenelle (31 August 1769 – 30 October 1799) was an actress and singer who played in London and Scotland before marrying and heading off to America to join the Boston Theatre.

The result of his submission was that in 1788 Fontenelle appeared as Moggy McGilpin, the heroine in John O’Keeffe’s comic opera, The Highland Reel.

It was while she was playing at the Theatre Royal, Dumfries that she caught the eye of Robert Burns, who wrote a Prologue for her to recite at her benefit night on 26 November 1792 on the Rights of Women.

In their American debuts in the Boston Theatre, John played the Moor in Othello and Louisa 'Little Pickle' in Bickerstaff's The Spoil'd Child.

"[5] After their first season, Williamson became manager of the Boston Theatre but his "unfortunate habit of undervaluing everything American" led to failure "through a want of co-operation and support from the stockholder."