U.S. States: Wisconsin: Adams County
Orville Lyon had 3 brothers, 7 sisters. The brothers are John Emerson Lyon, b 20 Oct 1838 in Erie, PA, married Harriet Alice Bacon on 25 Dec 1866, died 18 Apr 1922; Solomon Lyon, b 8 Feb 1825 in Otsego County, NY, married Hannah Bigsby, died 6 October 1903; and Elmer Lyon..I have nothing on him other than a possible 1903 death date.
Their parents are John Lyon, born 1 September 1799 in New York, died 26 July 1877 and is buried in York, Jackson County, WI; and Sally Manning, born 17 May 1802 in Tioga County, NY, died 3 March 1899 and is buried in York, Jackson, WI. This couple was married on 2 January 1820 in Saratoga County, NY.
There is a possibility there were 2 older sons born to this couple, but have found nothing concrete yet.
Hope this helps.