Frank died in OK in the late 20's or early 30's. Mona wrote to Alice, trying to find info on the Ladds. She was 80 years old at that time. In the 1900 census the family lived in Sabetha, Nemaha, KS.
1900 census
Frank M Ladd 37 May C Ladd 27 Percy R Ladd 5 Mon V Ladd 3
1910 census
Frank M Ladd 46 May C Ladd 36 Percy Ladd 15 Mona V Ladd 13
In 1910 the family lived in KC, Jackson, MO
1920 census
Frank M Ladd 55 May C Ladd 45 Butler R Talbott 25 Mona V Talbott 23 Gordon L Talbott 1 4/12