Based upon my research, Maxine moved to California. I don't know her first husband, but she married Mason Allen Pinney on 2 October 1944 in Los Angeles. According to the marriage certificate, it is her second marriage, but it lists her maiden name. Here is the marriage certificate: https://familysearch.org/ark:/61903/1:1:K86T-LJ5
. According to the California death index on Ancestry.com, she was born 12 October 1915 in Colorado, and died 18 February 1968 in Orange California.
I believe that Vivian married Kenneth LeRoy Knight, and they lived in California also in 1940, in Compton, where her sister got married. I believe that the Vivian A Knight, listed in the California death index (https://familysearch.org/ark:/61903/1:1:VP4G-272
), born on 7 February 1913 in Colorado and died on 24 October 1966 in Los Angeles, California, with a mother's maiden name of White is Vivian Ross. Kenneth was born on 15 September 1914 in Iowa, but grew up in Woodward County, Oklahoma. He died on 25 April 1988, in Los Angeles.
I am sure of Maxine, because of the marriage certificate. I am only assuming with Vivian that this is the correct one, based on her birth place, year, and mother's maiden name, as well as her location in 1940 and her sister's marriage. Maybe there is a death certificate or an obituary you can find to confirm this information. I hope this information helps. I live in Montrose, and I might be able to find time to get to the library and look up their grandfather's obituary (John B White) in the newspapers, if necessary. Let me know if you need that. Good luck on your research.