I believe their last name is spelled incorrectly in the Oak Lawn Cemetery Records. The cemetery record in has it as SEELEY and it should be SEELYE
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1850 US Census: Spring, Crawford, Pennsylvania
Martha Seelye 51 born abt 1799 New York
Justus Seelye 23 born abt 1827 New York
Emily Seelye 20 born abt 1830 New York
Thomas Seelye 16 born abt 1834 Pennsylvania
Ebenezer Seelye 14 born abt 1836 Pennsylvania
M A Seelye 9 born abt 1841 Pennsylvania (ASA)
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1860 US Census: Newburg, Filmore, MInnesota
Thomas R Seeley 26 born abt 1834 Pennsylvania
Martha Seeley 64born abt 1796 New York
Asa Seeley 19 born abt 1841 Pennsylvania
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Minnesota Marriages Index: 1849-1950
Name: Thomas R Seelye
Marriage Date: April 6, 1861
Marriage Place: Fillmore, MInnesota
Spouses Name: Helen M Hill
FHL Film Number: 1316804
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1880 US Census: Vernon Springs, Howard, Iowa
Thomas Seely 46 born abt 1834 Pennsylvania
Helen Seely 35 born abt 1845 Ohio
Asa Seely 18 born abt 1862 Minnesota
Alice Seely 16 born abt 1864 Minnesota
Henry Seely 14 born abt 1866 Minnesota
Julia Seely 12 born abt 1868 Minnesota
Louisa Seely 10 born abt 1870 Minnesota
Willie Seely 7 born abt 1873 Iowa
Ida Seely 5 born abt 1875 Iowa
Samuel Seely 2 born abt 1878 Iowa
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1900 US Census: Orleans, Winneshiek, Iowa
Samuel C Seelye 22 born April 1878 Iowa
Helen Seelye 14 born June 1885 Iowa
Ethel Seelye 12 born December 1887 Iowa
Thomas Seelye 65, father born December 1834 Pennsylvania
Helen Seelye 54, mother born November 1845 Ohio
Ruth Battey, niece, 6 born January 1894 Iowa
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Iowa Births and christenings:

Helen Frances Seelye, Born June 29, 1885 in Winneshiek, Iowa; parents Thomas R Seelye and Hellen M Hill Seelye

Ethel Luella Seely born December 12, 1887, Winneshiel, Iowa; parents Thomas Robert Seelye and Helen Hill