Still Searching for Information for the Jarvis Clan

I would love to know more about my Jarvis family. Starting with my gt gt gt grandmother, Jane Jarvis b 28 Mar 1782 in Mt. Pleasant, Westmoreland, PA. d 12 Feb 1873 in Paint Twp. Holmes, Ohio. She married ABT 1806 in PA., to Thomas Brookens b 17 Aug 1782 location, not sure. Some think Ireland.
Jane was the d/o Joseph Jarvis b ABT 1755 & Margaret Jimison b 1758. Jane Jarvis & Thomas Brookens had 9 children and the 5th child was a daughter named Margaret Brookens b 1845 in Ohio and married Frederick
Sommers b 30 May 1839 in Bern, Switzerland. Their son was Everett Brookens Sommers b 25 Feb 1874 in Colfax, Cloud Co., Kansas d 1 Feb 1944 in Independence, Polk, Oregon. He married Rosa J McNett b July 1872 in Ill.
Would like to hear from someone who may be able to give me more information for the Jarvis family.
Thanking you so much and appreciate your help.
Maxine family.