Martha W. Hendrix wife of W. M. Hendrix

Martha is buried in the Kopperl Cemetery, Kopperl, Bosque Co., Texas. Her stone states she was wife of W. M. Hendrix, born Apr 11, 1851 died Jan 23, 1904. There are 3 graves with her. Two on one side, and one on the other. The writing on the stones were hand carved and very difficult to read. One has the words Mr Mrz ?????Baby.
One has words M M Hendrix A R??????/dide September 11 98. The third stone has Annie S(Maybe) Ha????? dide Mar-----. (Note spelling of word died)
Can any one identify who these 3 stones are for???
Since they are on either side of Martha, wife of W M, I am sssuming they are related to the Hendrix.Please help me if you can. Have posted this Cemetery to find a grave.com and would like to include these people if I can get their identity.ThanksSteve