I believe I may be of some help with your GILLOW line. First off, the name GILLOW has been very much adulturated throu-out the census and many other records.
I have been researching for 32 years now and GALLOW is how our family spells it, but I have found 43 variations of which these are a few( GILLOW, GELLOW, GALLOO, GILLOO, GELLOO, GALLUM, GILLUM, GELLUM, GALLON and so on )which is the correct way to spell it is any bodies quess. I do believe it will pan out to be Gillow and lead back to Ireland. I'm running a line check into Pennslyvania around 1800 - 1820 on some new info, and I'm still waiting on the results.
As to your John Gillow b (March ?) in 1860 to William Gillow in New York, His parents where William and Louisa (Armstrong) Gillow they were married in 1849 and were on the 1850 census in the home of her parents, Aaron and Lucrietia (?) Armstrong in Newfield, Tompkins Co., New York. They had one daughter, Mary who was b.(in June?) 1850. In 1860 they were in the same town and county in New York, Mary should have been listed and age 10, but she is not. I need to recheck the 1855 census, but I believe she was not listed then either.
1860 Newfield, Tompkins, New York
Gillow, William, Male,31, Farm laborer,b. New York
Louisa,Female, 29b. New York
Sarah J, Female, 9attend schoolb. New York
Hiram,Male7attend schoolb. New York
Ida M.,Female4b. New YORK
Albert,Male3b. New York
John,Male3/12b. New York
Bishop, Henry,Male57 (no occ. listed)b. New York
William's relestate was listed as valued at $100.00
Your William Gillow is a brother to my David Gallow.
If you note, the 1870 Odessa, Ionia co., Michigan census, John Gillow is in the home of his grandparents, Aaron and Lucrietia Armstrong, if you need this info, let me know. If you would also like the 1850 census info, again let me know.
My David Gallow went to Michigan between 1855 - 1862, Married a Charlotte Hyatt (HAIGHT, HIGHT, ETC.)They had 5 known children, the first 4 children were born in Michigan.
Leroyb. 15 May, 1870 Odessa, Ionia, Michigan
Nettieb. 25 April, 1872 Odessa, Ionia, Michigan
Floydb. 10 June, 1877 Newfield, Tompkins, New York (our line).
I do not know if your John and my David ( nephew and uncle) went at the same time with John's grandparents or not, This is one of my brick walls. I do not know exactly when they went and I can not find my David in 1860 or 1870 in either state, New York or Michigan.
This is the family group as I have it so far:
William GALLOW-GILLOWb. 1775 - 1790 possibly Ireland
wife, Mary (Maiden name ?) b.@1798 Orange County, New York
Mary was the mother of 10 children:
Sallyb. @ 1822have more info
Jamesb. @ 1824have more info
sonb. @ 1826
Williamb. @ 1828 ( your line )
Johnb. @ 1831have more info
sonb. @ 1833
sonb. @ 1835
Davidb. @ 1838( my line )
childb. @ 1840
Emalineb. @ 1842
I hope this has helped some. You can email me direct if you would like at: firstname.lastname@example.org with any other questions you might have. If you don't mind, would you be willing to share your info on your John Gillow line? I do all collateral lines as well as direct lineage.
In our line, David's son Floyd, had twins who were Ray Clifton and Jay Aulden, Ray had a son Ray Milton and Charles Eugene. Interesting how some names seem to run in family groups.
Hope to hear from you,