Named for his politically prominent uncle, also named Bradbury Cilley (1760/1831). The younger Bradbury removed to the Northwest Territory, to what became southwestern Ohio as a toddler from New Hampshire in 1802 with his parents (prior to Ohio's 1803 statehood).

I have reconfirmed that yes, "October 1802 While a Territory" was clearly handwritten by him in a mss document preserved at Cinti Historical Society Library. "Bradbury Cilley Rockingham New Hampshire" is signed here along with the date, when each pioneer arrived in the area, [p18-19, ?Cincinnati Pioneer Assn Members Registry, Cinti His Soc Lib, Museum Center, Cincinnati]. Also his name was listed on "p34, Proceedings of Jany 5 Continued. Railroad Tickets issued to new members".[same source a few pages away]

Bradbury Cilley was an ambitious merchant and farmer. When determining the precise location of the Jonathan Cilley homestead and farm , adjacent to the Elias Hedges homestead and farm (and Mary Hedges, d.1920 transfer with strings of the family cemetery to the county commissioners, c1910-1912 minutes, but with written provisions that the county must guarantee both its preservation and maintenance), remember that the course of the small river has changed its water course over the past 210 years [One Hundredth Anniversary of Hedges Family, old newspaper article,c1905]; this has always stymied my own understanding of where precisely the Cilley land lay (generally between the bridge to Venice, Ross Twp, Butler Co.,OH and the new Heritage Park, Colerain Twp,Hamilton Co.,OH -- but ?Crosby Twp across the waterway also factors in somehow).

Also the Elias Hedges, wife Elizabeth Gaston family land lay in between the Cilley land and the Abner Johnson family land; revolutionary war script (earnings paid in wild untamed remote acreage) seem to be a factor here [more research needed on Sargt. Elias Hedges, NJ wagoner and Abner Johnson, NJ wagoner for George Washington, Continental Army, and General Joseph Cilley of NH, and their Ohio land acquisitions]. Harriet & Bradbury's family, is #211, as set forth on p15 and p37-38, The Cilley Genealogy by JP Cilley of Rockland, a slim book. They had eight children. One son, Bradbury Jr has a cenotaph in Venice Cemetery but his burial is at Hedges Cemetery (see photo of marker over there) so he should properly have two entries.