My Three Sons season 5 youtube

Even though Don Grady left the series after Season 11, his name remained in the opening credits in the 12th and final season. Charley was Bub's brother.

Considine left the series in 1965, and his character married his girlfriend, played by Meredith MacRae, and moved away. To keep a third son in the series, the family on the show adopted a neighborhood boy, Ernie, played by Barry Livingston, the Times reported.

William Demarest, playing Bub's brother, "Uncle Charley", replaced Frawley in 1965 because of Frawley's declining health.

Los Angeles - My Three Sons House - 837 5th Avenue - (837 …