Patrick William Moore, child star of silent films, died April 25 of natural causes. He was 91.

Moore appeared in more than 30 films, mostly in the teens and ’20s, alongside such stars as May McAvoy, Gloria Swanson, Wallace Reid, Rudolph Valentino and Clara Bow.

He started his lengthy film career in 1917 in a Western filmed in Santa Barbara. When his parents moved to Hollywood in 1918, he was discovered by Cecil B. De Mille, who cast him as Little Hall in the second version of “The Squaw Man.”

Under De Mille’s guidance, Moore’s career included roles as Valentino (as a boy) in the 1921 features “The Young Rajah” and “Blood and Sand”; the prince in the 1922 “The Queen of Sheba”; the Pharaoh’s son in the original 1923 “The Ten Commandments”; and as Clara Bow’s brother in “The Primrose Path” in the late 1920s.

He was the last living cast member of “The Ten Commandments.” He was sometimes credited as Terrence Moore.

Born Patrick Sheffield in Bristol, England, he changed his name to his mother’s maiden name, Moore, at the suggestion of De Mille.

After retiring from acting, Moore became a music editor and worked on “Bonanza,” Doris Day starrer “Teacher’s Pet,” “The Longest Yard” and “Marathon Man.”

As an assistant editor, Moore worked on many films including “War of the Worlds,” “A Place in the Sun” and “When Worlds Collide.” He was sound editor for “The Lost Weekend.” starring Ray Milland.

In his early production days, Moore worked in the property and wardrobe department at Paramount where he met wardrobe mistress Irmgard Bachler. They were married in 1940. Pat retired from the studio in 1980.

Pat served two terms as president of the Paramount Studio Club in the ’60s and continued to be active in the org.

Pat is survived by his brother, Micky Moore, child actor and second-unit director; his wife; two daughters; and four grandchildren.

Donations may be made to the Motion Picture & Television Fund.