[1] In his boyhood he was a schoolmate of Edwin Booth who was born in the same year as he, and with whom he engaged in amateur dramatic readings as members of the Baltimore Thespian Club.

In August 1865, just months after the assassination, Asia gave birth to twins Creston and Lilian.

Clarke made his first appearance at the St James's Theatre as Major Wellington de Boots in Stirling Coyne's Everybody's Friend, rewritten for him and called The Widow's Hunt.

[1] At the Princess's in February 1868, he was Salem Scudder in a revival of The Octoroon, and later, at the Strand, was the first Young Gosling in Fox versus Goose.

At the beginning of his career Clarke wished to play tragedy, but he later turned to comic roles.

Among the mourners were Mr. and Mrs. Clement Scott, Charles Hawtrey, the staff of the Strand Theatre, and Clarke's two sons, Creston and Wilfred.