- [S2] Plymouth County Vital Records
- [S10] Providence Gazette--Deaths
- [S17] Plymouth Colony Vital Records
- [S28] AbrahamLeonardInternet.ftw
- [S35] Middleborough Vital Records, Vol. I, Early Records, Part II -Marriages 1866-1705/Book I - Births, 1674-1709
- [S41] Genealogy of the Leonard Family by Fanny Leonard Koster
- [S64] Middleborough Vital Records
- [S88] Genealogyy of the Leonard Family, Fanny Leonard Koster
- [S89] Raynham VR
- [S90] Mayflower Descendant, Vol. XXI
- [S92] Mayflower Descendant, Vol 35, no. 2 (July 1985)
- [S93] Easton VR's
- [S94] Taunton VR
- [S99] Norton VR
- [S100] Mansfield VR
- [S105] Torrey: New England Marriages CD
- [S110] Barnstable VR, Vol. III
- [S115] Mayflower Descendant, Vol 21
- [S116] Mayflower Descendant, Vol XXI
- [S128] The Leonard Dictionary, Volume III
- [S155] First Book of Raynham Records
- [S157] Bristol County Telegram, Nov. 20, 1858
- [S160] Bristol County Telegram, Nov. 20, 1858, reprint from an old manuscript
- [S161] Bristol County Telegram, Nov. 20, 1858, from an old manuscript of Maj. Thomas Leonard's marriages
- [S183] Middleborough MA Deaths, General Society of Mayflower Descendants, 1947
- [S211] Carver Vital Records
- [S222] Taunton Marriages
- [S228] Bill Barton's Roots WEb Leonard genealogy site
- [S245] Massachusetts Vital Records
- [S247] Thomas Leonard Family Bible