On November 23, 1892, Dallam married Josephine R. Evans, daughter of Dr. John Evans, of
Port Deposit. They had four children, Rebecca, Mary, Richard Jr. and John Evans. He was a member of the Emmanuel Protestant Episcopal Church in Bel Air. Dallam died on April 11, 1939, at his home on Broadway in Bel Air. He was buried at Rock Spring Cemetery. ==References==