I have talked to Pat a few times, and I'm sure that she would have had these books put into the LDS library.Other than that, I have no idea what libraries they would be found in.
The first paragraph on the first page of the first book says:
"Our first proven ancestor was Anstatt Lingenfelter.He was from Rhodt-unter-Rietburg, Germany.He had two brothers, Hans Lingenfelter and Steffan Lingenfelter. Hans Lingenfelter was mayor of Rhodt-unter-Rietburg. Anstatt was born circa 1520 in Rhodt-unter-Rietburg, Germany.The children of Anstatt Lingenfelter and his wife Barbara were:Valentin Lingenfelter (Our ancestor) was born in R-U-R, Germany.He married Margareth Falk on May 27, 1593 in R-U-R, Germany.He died Feb. 26, 1623 in R-U-R, Germany."