| Sources |
- [S3076] FamilySearch.org, United States, Census, 1910, "United States, Census, 1910", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MGDY-VXJ : Mon Oct 20 09:57:21 UTC 2025), Entry for Oscar D Blanndt and Hettie Blanndt, 1910.
https://familysearch.org/ark:/61903/1:1:MGDY-VXJ
- [S3094] FamilySearch.org, Pennsylvania, Marriages, 1709-1940, "Pennsylvania, Marriages, 1709-1940", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q2WN-B5RT : 7 May 2023), Delos Blauvelt, 1880.
https://familysearch.org/ark:/61903/1:1:Q2WN-B5RT
- [S3235] FamilySearch.org, New York, New York City, Police Census, 1890, "New York, New York City, Police Census, 1890", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q247-8FMG : Thu Mar 07 22:22:40 UTC 2024), Entry for Oscar Blauvelt, 1890.
https://familysearch.org/ark:/61903/1:1:Q247-8FMG
- [S3059] FamilySearch.org, United States, Census, 1860, "United States, Census, 1860", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MCHV-1R4 : Mon Jul 08 14:24:08 UTC 2024), Entry for James Blawvelt and Mary E Blawvelt, 1860.
https://familysearch.org/ark:/61903/1:1:MCHV-1R8
- [S3058] FamilySearch.org, United States, Census, 1870, "United States, Census, 1870", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M8XR-JXT : Wed Jan 22 09:29:42 UTC 2025), Entry for James Blauvelt and Mary Blauvelt, 1870.
https://familysearch.org/ark:/61903/1:1:M8XR-JXB
- [S2608] FamilySearch.org, Find A Grave Index, "Find a Grave Index", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QVV1-B6L8 : Wed Aug 06 17:50:49 UTC 2025), Entry for Oscar Delos Blauvelt.
https://familysearch.org/ark:/61903/1:1:QVV1-B6L8
- [S3077] FamilySearch.org, United States, Census, 1920, "United States, Census, 1920", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MXM1-B3K : Wed Oct 22 00:46:11 UTC 2025), Entry for Delos Blanvelt and Hettie Blanvelt, 1920.
https://familysearch.org/ark:/61903/1:1:MXM1-B3K
- [S3058] FamilySearch.org, United States, Census, 1870, "United States, Census, 1870", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MZT9-TQG : Fri Jan 17 04:20:27 UTC 2025), Entry for James Blauvet and Mary A Blauvet, 1870.
https://familysearch.org/ark:/61903/1:1:MZT9-TQ5
- [S2975] FamilySearch.org, United States, Census, 1880, "United States, Census, 1880", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MWJ9-HW5 : Fri Oct 10 18:30:30 UTC 2025), Entry for James Blauvelt and Mary Ann Blauvelt, 1880.
https://familysearch.org/ark:/61903/1:1:MWJ9-HWT
- [S3059] FamilySearch.org, United States, Census, 1860, "United States, Census, 1860", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MXT8-N13 : Mon Jul 08 21:41:10 UTC 2024), Entry for James Blauvelt and Mary A Blauvelt, 1860.
https://familysearch.org/ark:/61903/1:1:MXT8-N1W
|