Born in Keynsham, Somerset, Allen Culpeper Sealy is assumed to have been educated at Bristol School of Art. After marrying Elizabeth Phillipa Pine Harris, the artist moved his young wife to London and began making a name for himself as a landscape artist and equestrian painter. Traveling extensively on commissions, he completed work in South Yorkshire, Kent, and Devon. He received multiple prestigious commissions from patrons in Newmarket, where his portrait of Kingwood now hangs in the National Horse Racing Museum. Sealy was known to have exhibited at the Royal Academy, Birmingham Royal Society of Artists, Royal Society of British Artists, and the Royal Institute of Oil Painters.