Martin was one year and five months old when his mother died.
In a 1940 Voter Register document Martin was married to Rachel B. (maiden name unknown). Rachel was listed as his wife in this document.
When Martin died he was married to Juanita Caywood (maiden name unknown). She signed his death certificate.
His brother and sisters are: Harry Caywood (1894 – ?) Belle Caywood (1895 – ?) Monnie Caywood (1898 – ?)
After Martin's mother died his father remarried to Lillie Rose Spencer (1882 – 1965), who helped raise Martin. Samuel and Lillie had these children (stating the obvious, but they are half brothers and sisters to Martin):