We have the 8 Oct 1891 Webster Co KY marriage (Bk 15; p 119) for an R.S. Todd to a Sarah A. Todd.

We also have the following 1900 Webster County KY census listing, but the birthdates for Sarah A. and Reuben S. Todd don't quite gibe with the dates on the headstones.

1900 Webster census, p 33 #165:
Todd, John; head; Jun 1832; 67; m/40; KY/KY/TN
Todd, Sarah; wife; 1843; 57; m/40; 1/1; KY/KY/TN
Todd, Sarah A.; dau; 1866; 34; m/9; 1/1; KY/KY/KY
Todd, Reuben S.; son-in-law; 1868; 32; m/9; KY/KY/KY
Todd, Zura L.; gr-dau; Oct 1892; 7; KY/KY/KY

We would welcome more information on this family.