Great Grand Mother
Eliza Callender (born 1854 Barbados, West Indies died in New York, USA) married her 1st cousin William Thomas Callender (born 1857 Barbados, West Indies died in Guyana, South America).
Grandfather
Thomas William Conrad Callender born in 1902 in Guyana, South America came to New York in 1918 with his mother and siblings.
Grandmother
Ruth Thompson married Thomas William Conrad Callender and had 2 children: Betty (Elizabeth) & Billy (Conrad William.