A Cockrel, Harrison and a Cockrill, Harrison show up listed in the 1830-1849 membership list for the Trammel Fork Baptist Church on the Allen County Kentucky searchable on-line database (extracted from "Minutes of the Trammel Fork Baptist Church 1819-1994, Allen County, Kentucky" by David C. Smith, Pembroke KY). These are probably both the same individual. A Cockrill, Lavina also appears directly below the Cockrill, Harrison listing and is probably Harrison's wife. Both individuals were "dismissed by letter," probably when they left the area for Missouri. Harrison's brothers, James A., Larkin D., and William B. also appear to be members of this church. Members of the Hagans family may have also belonged to this church.

The Trammel Fork Baptist Church was west of Scottsville, Kentucky. It was a Primitive Baptist Church which was organized in 1807. Harrison's father, Anderson, and his grandfather, William, were members of the Primitive Baptist Church.

There is a mention of Harrison buying an "improvement" in Benton County, Missouri in Mary M. (Hammett) Peck's letter which is believed to have been written in 1838 after the bulk of the Cockrill family had moved there from Kentucky.

Harrison Henry Cockrill is listed in the 1850 Census for Bates Co., MO, living in District No. 6, dwelling #234, as Harrison Cockrill, a 33 year old farmer born in Kentucky with $100 of Real Estate. Also enumerated in the same household are Ruhama (a. 25, bp. KY), Adaline (a. 11, bp. KY), Amanda (a. 6, bp. MO), Robert (a. 5, bp. MO), Morgan (a. 3, bp. MO), and Mary (a. 1, bp. MO). Lived next door to his parents (listed as Anderson and Rebecca Cockrill in dwelling #233) in District #6, Bates County, Missouri in the 1850 Census.

Came to Santa Rosa in 1853 with his family as a member of the Hagans-Cockrill Wagon Train, and died 3 years later. According to Winifred Reidmiller's Cockrill Family history, he was made Deputy Sheriff of Sonoma County, though no documentation for this family story has been found.

On August 7, 1855, Harrison Cockrill had bought six lots (Deed Book 6 Page 87) from Berthold Hoen, J. William Hartman, and Feodor Gustave Hahmann (besides Julio Carrillo, the three Germans who made up Hoen & Company and whose office was in the old Carrillo Adobe, were the primary land merchants of Santa Rosa in the 1850's. Barney Hoen drove the first survey stake for Santa Rosa in the summer of 1853. The town became the county seat in 1854:

Know all men by their presents that we Berthold Hoen, John William Hartman, and Feodor Gustave Hahmann, all of Sonoma County State of California for and in consideration of the sum of one hundred and fifty dollars in [?]paid by Harrison Cockrill, the receipt where of is hereby acknowledged have granted bargained sold and conveyed and by these present do [?], grant, bargain, sell and convey unto the said Harrison Cockrill, his heirs and assigns foreseen the following premises to wit, Lots number Seventy Two (72) seventy three (73) seventy four (74) Eighty one (81) Eighty two (82) and Eighty three (83) in Block 16 in the town of Santa Rosa, in the County of Sonoma and State of California. To have and to hold the said premises with the appurtenances unto the said Harrison Cockrill, his heirs and assigns forever and the said Berthold Hoen, John Wm. Hartman, and Feodor Gustave Hahmann have hereinto set this their seal this seventeenth day of August in the year of our lord, 1855.
Berthold Hoen
J. Wm. Hartman
Feodor Gustave Hahmann

The Cockrill family later disposed of these downtown lots in 1877 to Richard Fulkerson (Sonoma County Deeds Book 61 Page 48):

We Ruhama Grant formerly the widow of Harrison Cockrill deceased and Cynthia A. Winchell daughter of said Harrison Cockrill deceased, and Amanda E. Fulkerson daughter of said Harrison Cockrill deceased and Robert B. Cockrill son of Harrison Cockrill deceased and Charles M. Cockrill son of said deceased, Mary M. Foster a daughter of said deceased and Eliza L. McGuire a daughter of said deceased and Jenette Barden a daughter of said deceased by S. T. Fulkerson our attorney in fact for and in consideration of the sum of one thousand and forty dollars do hereby grant to Richard Fulkerson of Santa Rosa, County of Sonoma and State of California all that real property situated in the City of Santa Rosa County of Sonoma State of California, bounded and described as follows: Being lots number seventy two, seventy three, seventy four, eighty one, eighty two, and eighty three in Block sixteen in the City of Santa Rosa as per Recorded map of the town of Santa Rosa now on Record in the County Recorders office of said Sonoma County and being the real property belonging to the estate of Harrison Cockrill deceased and the said Grantors being the heirs at law of the said Harrison Cockrill deceased, all of lawful age to wit: over the age of twenty one years. To have and to hold the above grantee and described premises unto said Richard Fulkerson his heirs and assigns forever. Witness my hand this first day of November 1877.

S. T. Fulkerson for himself and as the attorney in fact of

Ruhama Grant
Cynthia A. Winchell
Amanda E. Fulkerson
Robert B. Cockrill
Charles M. Cockrill
Mary M. Foster
Eliza L. McGuire
Genette Bardin

The Deed goes on to say that indeed S. T. Fulkerson is known to John Brown, Justice of the Peace and is the "attorney in fact" for all these other people who are who they say they are. This document was recorded at the request of Richard Fulkerson at 35 minutes past 3 PM, 1 November, 1877 with O. H. Hoag as the County Recorder.

These 6 lots were later developed into the Fulkerson family's "Chinatown" properties.
Richard subsequently gave this property to his son and daughter-in-law, Stephen and Amanda on December 3, 1878 (Sonoma County Deeds, Book 66 Page 518).

A copy of Henry Harrison Cockrill's will is available here.

Extractions from Henry Harrison Cockrill's Probate Record is also available.

It is unknown at this time where Henry Harrison Cockrill is buried.