1880 census of Guadalupe Co TX:

Wm. King (age 21) and wife Mattie (age 20) are enumerated as family 118, near the listing for Will’s brother John King and his wife Eva and family (family 115) and the listing for C. C. Vaughn (family 116).

1900 census of Travis Co TX:

Name Age
William P King 48 head
Mattie King 40 wife
Ella King 15 dau
William King 13 son
Harry King 8 son
Ethel King 1 dau

1910 Centus Justice Precinct 4, Hays, Texas

Name Age
Wille S King 23 m4 TX MS TX
Nisy King* 22 m4 TX TX TX
Kate King 4 s TX TX TX
Myrtle King 7/12 s TX TX TX

*Mother of 2, 2 still living

Name Age
William P King 51 m29 TN MS MS
Mattie King 50 m29 TX MS TX
Harvey King 19 s TX TN TX
Ethel King 12 s TX TN TX

*Mother of 6, 5 still living

[From the latter, it can be concluded that either Minnie or Stella had died by 1910.]