DE WALDEN, Thomas Blaides, actor, born in London, England, in 1811; died in New York City, 26 September 1873. He appeared at the Haymarket theatre, London, in 1841, and made his first appearance on the American stage at the Park theatre, New York, in 1844, as Behnour in "Is he Jealous ?" After achieving moderate success upon the stage, he began to adapt and to write plays, of which he left more than one hundred. In 1857 he abandoned his profession and engaged in mercantile pursuits, but without success. He was a chaplain in the volunteer army of the United States during the civil war. He was the author of "The Upper Ten and the Lower Twenty," played at Burton's theatre, New York ; "The Seven Sisters"; "Sam,' written for F. S. Chanfrau ; " Kit," altered for Mr. Chanfrau; " The Jesuit," played at the Bowery theatre in 1854; "The Bell Ringer of Boston"; "The Hypochondriac," and several adaptations from the French for Matilda Heron.