1. Varied. Larry D. Loiselle, Karen S. Loiselle, and birth/marriage/death records.
2. Donald Van Sluyters, Lois Jean Ringelberg, and family records.
3. Larry Loiselle, Karen Loiselle, Lois Jean Ringelberg, and family records.
4. 1914 Grand Rapids (Michigan) City Directory.
5. United States Social Secuity Administration. U.S. Social Security Records.
6. Christopher Penning. Christopher Penning (Internet), Swierenga book, Donald Van Sluyters, and Lois Jean Ringelberg. Grand Rapids, Michigan.
7. Obituary records, census records, manuscript collection, and surname file of the Western Michigan Genealogical society, Grand Rapids, Michigan.
8. Records from the Herrik Library in Holland, Michigan; the 1870 Census, Muskegon County, Muskegon City, and the Ottawa County Marriage records; Holland City death records; and Holland Sentinel.
9. Barend van Sluyters,,
Rabatstraat 59
7559 CX Henglo (0)
Tel: 074-2775268.
10. Centraal Bureau voor Genealogie (CBG), Odette ten Hulsen, Netherlands plus the book of Swieringa (about Dutch immigrants). Also, genealogy records provided by, which he got from the Genealogische Werkgroep, Schouwen - Duiveland (Province of Zeeland), Mevr. Koster - van Buren, Phoenixstraat 16, Ouwerkerk, Zid., Holland, ouwerkerk 20 January 1978.
11. Johan Baptist Karel Ringelberg
Oldenzaalstraat 44
12. Peter van Markus, (Netherlands).
13. Peter van Markus,
14. Peter van Markus of the Netherlands from obituary in the Grand Rapids Press, 17 November 1937.
15. Leendert Verbrugge
Noordstraat 9
Walsoorden (Leeland) 4588 KM

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