- Alfred Henry Sincere
- Ben E. Sincere
- Carol Sincere
- Charles Sincere
- Chas. Sincere
- Clara Sincere
- Edw. Sincere
- Edward Sincere
- Edward (Mrs.) Sincere
- Emily Sincere
- Harry Sincere
- Henry Sincere
- Louis Sincere
- Louis (Mrs.) Sincere
- Lulu Stoser Sincere
- Mayme Wershinski Sincere
- Nora Sincere
- Sarah Sincere