Through his paternal grandmother, he could trace his descent to Col. Thomas West, who served seven years on the Continental Line during the American Revolutionary War.

[3] During that term, in 1880, fellow legislators elected Lacy a judge of the Eighth Circuit Court, to fill the seat vacated by Robert L. Montague, who had died in office.

In 1882, the Virginia General Assembly elected four members to the Supreme Court of Appeals for twelve year terms effective January 1, 1883.

Lacy, Thomas T. Fauntleroy, Drury A. Hinton and Robert A. Richardson remained on the appellate bench together until five successors took office in January 1895.

(thus the succession box above is arbitrary) During the final months of his term, Lacy suffered a lingering illness, and died at the age of 56 his New Kent County home, Marl Springs, on May 15, 1895.