| Generation 1 - Maryanne Zylstra: Born - 4 Mar 1960 - Chicago, Cook County, Illinois |
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| Generation 3 - John A. Zylstra: Born - Sep 1899 - Illinois |
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| Generation 3 - John A. Zylstra: Died - 5 Oct 1964 - Chicago, Cook County, Illinois |
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| Generation 3 - John A. Zylstra: Buried - - Mt. Greenwood Cemetery, Chicago, Cook County, Illinois |
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| Generation 3 - Florence Smith: Buried - - Mt. Greenwood Cemetery, Chicago, Cook County, Illinois |
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| Generation 4 - Age Zylstra: Died - 23 Jan 1948 - Chicago, Cook County, Illinois |
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| Generation 4 - Age Zylstra: Buried - - Mt. Greenwood Cemetery, Chicago, Cook County, Illinois |
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| Generation 4 - Age Zylstra & Elizabeth Roodhuizen: Married - 10 Nov 1887 - Cook County, Illinois |
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| Generation 4 - Elizabeth Roodhuizen: Born - Sep 1868 - Illinois |
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| Generation 4 - Elizabeth Roodhuizen: Died - 24 Oct 1904 - Cook County, Illinois |
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