You didn't include any dates, or approximate dates, so I did just a little searching, if nothing showed up I wouldn't have gone any further.Dates are very important in queries.I assumed the surnames with females was their married names, and that W.E. is a male. Becasue birth years and last residence matched up, I included what looks like wives of the two I did find.
Combined info from TX Dth Idx and SSDI:
Moerner, Otto William,Rev, b 17 Jul 1890; d 10 Sep 1980 Williamson Co, TX; last residence Georgetown, Williamson Co, TX; SS card issued in TX.
Moerner, Lillie P., b 27 Dec 1890; d Williamson, Co, TX; last residence Georgetown, Williamson Co, TX; SS card issued in TN [yes, TN, not TX (^_^)]
Moerner, William E., b 27 Apr 1897; d 25 Sep 1873 Bexar Co, TX; last residence San Antonio, Bexar Co, TX; SS card issued in TX.
Moerner, Florence N., b 12 Apr 1898; d 21 Jan 1982 Bexar Co, TX; last residence San Antonio, Bexar Co, TX; SS card issued in TX.
TX Dth Idx 1964-1998:
Hoerster, Pearl Bessie, d 1 Jul 1987 Erath Co, TX.
1920 census San Antonio, Bexar Co, TX:
Moerner, William, 23, roomer, sgl, b TX, Germ, TX
1920 census 5620 East Side Ave., Dallas, Dallas Co, TX:
Moerner, Otto W., hd, 29, Md, b TX, Germ, TX
" Lillie, wf, 29, Md, b TX, IL, KY
Longley, ____, roomer, 23, sgl (female), b TX, TX, TX
" Orene, roomer, 18, sgl, b TX, TX, TX
Otto is a minister.Longley 23 is a stenographer, and Orene is a Helper, both work for what looks like "Plow" Co.
1910 census Medina Co, TX:
Moerner, Robert, hd, 49, M(1) 22 yr, b Germ, Germ, Germ
" Emma, wf, 41, M(1) 22 yrs, 5 ch, 5 lvg, b TX, Germ, Germ
" Otto, s, 19, b TX
" Alice, d, 17, b TX
" Lily, d, 15, b TX
" Willie, s, 12, b TX
" Pearl, d, 4, b TX
Robert is Preacher, Methodist Church.
1900 census Guadalupe Co, TX:
Moernir(sic), Robt, hd, b __ 1861, 39, M 12 yr, b Gm, Gm, Gm
" Emma, w, b May 1868, 32, M 12 yr, # of ch blank, b TX, Gm, Gm
" Otto, s, b ___1870, 9, b TX
" Alice, d, b Apr 1872, 8, b TX
" Lillie, d, b Aug 1874, 5, b TX
" Willie, s, b Apr 1877, 3, b TX
Robt is a minister, came to U.S. 1895, been in this country 15 yrs, and it looks like it says he was naturalized.As you can see the writing is not too clear on this page.Even the index only showed the first 2 letters of the surname, but it helps when you know what it is "supposed" to be.(^_^)
1920 census Mason Co, TX:
Moesner(sic) Robert, hd, 58, Md, b Germ, Germ, Germ
" Emma, w, 51, Md, b TX, Germ, Germ
" Lillie, d, 25, sgl, b TX
" Pearl, d, 13, b TX
Robert minister M E Church, came to U.S. 1895, is naturalized, but date not clear, could be 1889 or 1899, just not clear.
So, next query put in some dates, or approximate dates, look what you could have missed.
Happy Hunting (^_^)