Through the DAR Members' Only Site I found the following:
BROTZMAN, Lawrence Service:MarylandRank:Sergeant b. 8-4-1751 York Twp., York Co., PA. d. Sep 1823 Champaign Co.-Prob. Ohio Service Description:Capt. Benjamin Ogle, Flying Camp. Residence:Frederick Co., MD. Spouse:Elizabeth Miller Child through whom 2 women entered the DAR: Son William who married Nancy Woodberry. DAR # 294920 and 702994.
Could this be your soldier? Old books are not always correct.