In 2006, his 2nd wife's obit lists the following children and residences:
Linda (Giles) Henderson of Charleston, IL
Sharon (Tom) Kostohris of Kent, WA
Don (Lynn) Tunnicliff of Great Falls, MT
Ronald Tunnicliff of Great Falls, MT
Scott (Cindy) Tunnicliff of Spokane, WA
There was no mention of Howard's daughters by his 1st marriage. However, he did have 2 daughters:
(1) Patricia married Melvin M. Grigg. She died 19 Jun 1994 in Kalispell. Their children (grandchildren) are: Cheri Jobman (Amanda, Eric) of Washington State, Mory Grigg (Miriah, Rachel, Raymond) of the Flathead Valley, and Dennice Hamman (Collin, Nolan) of the Flathead Valley.
(2) Jacqueline married a man with the surname Lewis.
Howard's brother, Milton Jay (aka Buddy,) died in 1931. He had no children.
Howard's sister, Irene, married twice (1) Leslie M. Dilley and (2) Charles W. Baxter, and had no children by either husband. She died 25 Apr 2000 in Kalispell.
I hope this information was helpful.