Hello,
You posted a request for information regarding William Henry Gearardo/Giradot's parents on the Allen County message board at rootsweb. I believe I found records that give William Henry Gearardo/Girado parents as Peter Gearardo and Susan Ditsell. The records were found at FamilySearch.org. In case you haven't found them yet the links to them are below.
Affidavit for License to Marry (image 1725):
https://familysearch.org/pal:/MM9.3.1/TH-1-17724-15459-35?cc...Marriage record (image 170):
https://familysearch.org/pal:/MM9.3.1/TH-1-17724-21079-22?cc...Reference notes:
Michigan, County Marriage, 1820-1935, Wayne County Marriage Affidavits, 1890-1891 (image 1725), no. 7638 (1890), William H. Gearardo and Mary Daugherty, 17 December 1890, digital images, FamilySearch (
https://familysearch.org/pal:/MM9.3.1/TH-1-17724-15459-35?cc... : accessed 29 October 2011).
Michigan, County Marriage, 1820-1935, Wayne County Marriage Licenses, 1889-1892 (image 170), p. 162, record no. 7638, William H. Garardo and Mary Daugherty, 17 December 1890, digital images, FamilySearch (
https://familysearch.org/pal:/MM9.3.1/TH-1-17724-21079-22?cc... : accessed 29 October 2011).