| | Jenckes was born in early November 1918 to Thomas B. Jenckes and the former Abigail W. Allen. He attended public schools and graduated from the Brown University. Studying law and being admitted to the state bar two years later, he proceeded to commence practice. | | Jenckes was born in early November 1918 to Thomas B. Jenckes and the former Abigail W. Allen. He attended public schools and graduated from the Brown University. Studying law and being admitted to the state bar two years later, he proceeded to commence practice. |
| − | He married the former Mary Jane Fuller, and the couple's children were Jeanie Rosalie, Mary Edith, Ida Cornelia, Florence Madeleine, Agnes Fuller, and Thomas Allen, II. | + | He married the former Mary Jane Fuller, and the couple's children were Jeanie Rosalie, Mary Edith, Ida Cornelia, Florence Madeleine, Agnes Fuller, and Thomas Allen, II (or Thomas, Jr.). |