Eliza Heathcock appears to have died sometime after her daughter Bettie was born in 1887, as she was not included with the family in the 1900 census.

Thomas Degan is listed in the 1900 census of Wilson Co TX:

Degan, Thomas head W M b Oct 1856 age 44 TX Germany LA
Degan, Edgar son W M b Aug 1884 age 14 TX TX TX
Degan, Bettie dau W F b May 1887 age 12 TX TX TX

(next family)
Hobbs, Florence ??? W F b Dec 1858 age 44 MS MS MS
Dawson, Wm son W M b Aug 1872 age 27 TN TN MS
Hobbs, Mary J. dau W F b Aug 1885 age 15 TX TX MS
Dawson, Elen G. dau in law W F b Dec 1877 age 22 TX TX TX
Dawson, John H. gr. son W M b Aug 1899 age 2 TX TN TX
Dawson, Wm. E. Jr. gr. son W M b Mar 1900 age 2/12 TX TN TX
Heathcock, John Jr. boarder W M b July 1864 age 36 TS TN TX
Heathcock, William boarder W M b May 1876 age 24 TS TN TX

1910 Census of Justice Pct 7, Wilson Co TX

Name Age
Thomas Dagen 55
Edgar Dagen 24 son
Henry Asbury 23 son-in-law
Bettie Asbury 23 dai