- Mar 1864 – Birth – ; New York, USA
- 1900 – Residence – Marital Status: Married; Relation to Head: Head ; Orangetown, Rockland, New York, USA
- 1905 – Residence – Relationship to Head: Head ; Ramapo, Rockland, New York, USA
- 1910 – Residence – Marital Status: Married; Relation to Head of House: Head ; Ramapo, Rockland, New York, USA
- 1 June 1915 – Residence – Relation to Head of House: Head ; Ramapo, Rockland, New York, United States
- 1900 – Residence – Marital Status: Married; Relation to Head: Head ; Orangetown, Rockland, New York, USA
- 1905 – Residence – Relationship to Head: Head ; Ramapo, Rockland, New York, USA
- 1910 – Residence – Marital Status: Married; Relation to Head of House: Head ; Ramapo, Rockland, New York, USA
- 1 June 1915 – Residence – Relation to Head of House: Head ; Ramapo, Rockland, New York, United States
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| M | John H Blackwell | ||
| Birth | Mar 1864 | New York, USA | |
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