You may know this by now, but the fellow you list as L.M. McMains was Luther Monroe MCMEANS b: 23 September 1876 in Indian Territory (OK)d. 20 April 1941 Santa Anna, Coleman Co., Texas Burial: Valero Cemetery.His parents were Jonathan E. McMeans and Alice Page.
Luther married: 10 February 1896 in Wilson Co., Texas, toFrancis "Fannie" Elmira COTTER.
S.C McMains was his son Steven Curtis MCMEANS b: 24 March 1898 in Texas
Luther was on the 1880 census with his parents:
1880 Cherokee County, Texas Ed: 15 Page: 28 Jonathan MC MEANSSelfMMaleW29TXFarm Laborer SC AL Alice MC MEANSWife MFemaleW29 MS Keeps House MSMS Luther MC MEANSSonSMaleW 4 INDIAN NATIONTX MS Willie MC MEANSSon SMaleW 2TXTX MS O. D. MC MEANSSonSMale W1M b. AprilTXTXMS Source Information: Census Place Precinct 4, Cherokee, Texas Family History Library Film 1255295 NA Film Number T9-1295 Page Number 392D
Luther was on the 1900 Census in Wilson County,Texas (Series: T623Roll: 1680Page: 220), on the 1900 Census in Caldwell County,Texas (Series: T624Roll: 1536Page: 79), and back in Wilson Co. for the 1920 census.
On the 1900 census, his children properly listed their father's place of birth as Indian Territory. The children on the 1910 and 1920 census were his biological children even though their father's place of birth was mistakenly listed as "Texas".
Luther's father, brother and sister-in-law are buried in Wilson Co.
Stockdale Cemetery,Stockdale, Wilson Co., Texas McMeans, Johnathan Elston, Dec 15 1850,Apr 15 1940, Lot # D160 McMeans, Laura E., Apr 01 1879, May 15 1968, (wife of Oda D.) McMeans, Oda D., May 27 1880, Aug 23 1962 (also other McMeans, including uncle Amos, buried in cemetery)