David ---I have very little info on Samuel Renick's siblings, but the following info should be of some help.First, contact my nephew, Allen R. McRay at E-mail Efirstname.lastname@example.org -- He has much more info on the Renicks than I do since I recently mailed nearly all my research notes frokm eleven years to him.
Yes, there is a Keziah Renick who is a sister to my great+grandfather Samuel Renick,who was b. in 1764 in Frederick Co. Md. She was born ca 1770 probably in Frederick Co., Md. to William Renick II and (?) Maybe Sarah ? or Ann Hamilton.William II was the son of William I.Both father and son and their families moved on to Barren Co., Ky.around Glasgow.
There is a lot of Barren Co. information on the Renick family, found mostly in court records.I am doing most of this msg from my memory, so I am bound to have left much of it out.
In 1819 a whole bunch of Renicks from Barren Co. moved west to Lafayette Co., Mo., near Wellington and Lexington, jand later to Johnson Co., just a few miles south of Lexington.Therer are still Renicks in Johnson Co.Since Keziah was b. ca 1770, she was likely to have been born in Frederick Co.Md.I know that Sarah Whitten Renick was born in 1796 in Lincoln Co. Ky. so it is likely that the Renicks who moved to Kentucky were probably in Barren Co. before 1800.
Keziah may have married prior to the journey and remained in Maryland.I would look for her marriage record in Md. or Kentucky.Ask Allen R. McRay to look up Keziah and see what he has.
To answer your query on the ancestors of Samuel Renick, I traced them to the father of William I, who was Thomas Renick, born in Ulster, Ireland (probably around Inneskillen, County Fermanagh ca 1678.Then I lose the trail.The earliest Renick that I found in County Fermanagh was a Thomas in 1630. He was on a muster list of individuals who were capable of bearing arms for local defense.
The Renicks seem to be of German origin, coming from some unknown area along the RiverRhine.They may have been called Rhinewicks. H. Gordon McRay