Neat first name!I haven't had a chance to do much double checking on the parents of my great grandmother Emalinda Jaycox Forman.I have simply jotted down an occasional note as I have researched another line of my family with the plan to come back and do a more thorough later search.You may be right that Emalinda's father was William C.
At any rate what I have in my folder for the Jaycoxs strand is as follows:
Emalinda L. or EmmaLinda L.Jaycoxb. 2/22/1860 Philipstown, NY d. 11/26/1956 Germantown, NY married George Fowler Forman b. 5/22/1858 in Putnam Valley, NY son of Gilbert Forman and Catherine Denney.They were married on 3/9/1882
Emalinda and George had four children:
William Olivet Forman , Katharine Alice Forman, Ethel May Forman (my maternal grandmother) & Ernest Forman
Emalinda's parents are recorded as having been: William O. Jaycox and Catharine Laforge
In the 1880 actual Census Images (Ancestry.Com) pg. 55#107/123the listing is recorded as follows:
William O. Jaycox age 61 (Farmer) Catharine (wife) age 52 Emalinda (daughter) age 20 Nannie (daughter) age15 Isaac P. (son) age 9
Older brothers who had set up their own family would not have been listed in the household.A family worksheetof January 1986 lists two additional brothers of Emalinda as Albert (Jaycox) and William (Jaycox)
In the 1880 Census other Jaycox families are recorded as living in the Putnam Towship Line area (Pgs 20 -28)
I made note that a William O. Jaycox is listed in the 1860 Census Index which records him being listed on page 248.I have not had time to research this branch of my family line to any extent however.I also noted that a Peter Laforge is recorded in the same Census Index as living fairly near to William O. Jaycox.He is recorded as being listed on page 282 (Philipstown).
Also in this 1860 Census Index I noted the following additional Laforge families listed: William Laforge - pg 232 Frances J. Laforge -pg 298 (Cold Spring) Elias Laforge - pg 297 (Cold Spring)
At my grandmothers funeral (Ethel May Forman ) held on 10/22/1951the guest book had an area for signature by relatives and among the relatives signing the book were a Mr. Seward Jaycox and Mr. & Mrs. Thomas Jaycox.These were evidently Cousins of my grandmother.
On the 1867 Beers Map of Philipstown/Putnam Valley I also noted that the locations of property was recorded for E. Jaycox in District #5 and for D. P. Jaycox in District #6 (Canopus area)
finally there are some very early references to a James Jeacocks in the Putnam Valley/Philipse Patent Philipstown area.I have theHistory of Putnam Cty by Pelletreau and James Jeacocks purchased 121 acres oflandfollowing the 1779 Act of forfeiture for the Philipse Patent lands.
Well hope some of the above may provides some leads for you.