Richard C. Gravis
d. bef 21 July 1975
(Notes: You may have to scroll down or right to see chart.)
| Wanda Mae Gravis | |
| B: | 3 Jan 1925 |
| Corpus Christi, Nueces County, Texas | |
| D: | 27 Dec 1988 |
| Joseph Charles Blacknall | |
| B: | 16 Aug 1913 |
| Arkadelphia, Clark County, Arkansas | |
| D: | 28 Jun 1962 |
| Corpus Christi, Nueces County, Texas | |
| Unknown |
| Richard C. Gravis | |
| D: | Bef 21 Jul 1975 |
| Bernice Melissa Frost | |
| B: | 8 Jan 1897 |
| Marysville, Nodaway County, Missouri | |
| D: | 21 Jul 1975 |
| Spohn Hospital, Corpus Christi, Nuceses County, Texas | |