Sources |
- [S497] Henrietta Novy, Severin Families 1776 - 2000, (N.p.: Henrietta Severin Novy, 2000.), Tab: John Hakel and Sophie Severin. (Reliability: 2).
- [S54] "Find A Grave, Inc.," database, Find A Grave , (http://findagrave.com, 2007), 19 Jan 2024, Michael Duane Hakel, 70930675 (Reliability: 3).
- [S54] "Find A Grave, Inc.," database, Find A Grave , (http://findagrave.com, 2007), 19 Jan 2024, Lawrence John Hakel, 70308500 (Reliability: 3).
- [S54] "Find A Grave, Inc.," database, Find A Grave , (http://findagrave.com, 2007), 19 Jan 2024, Agnes Christine Matussak Hakel, 208600625 (Reliability: 3).
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