hi Catherine, yes there is a lashbrook line in the book that is tied to rosenbrock:
Myron Aaron (Aaron D. 2, Richard 1, Lashbrook) was born 4 April 1867 in Horton, Iowa, the son of Aaron D. and Amanda (Houghton) Lashbrook. He married Catherine Rosenbrock 9 May 1901 in Harlan Co., Ne. Catherine was born 8 October 1881 in Manhattan, Ny, the daughter of Henry C. and Dorothea (Van Hollen) Rosenbrock. Myron Aaron operated a Livery Barn and was a postman for several years. He died 26 December 1940 in Almena, Ks. Catherine died 27 October 1977. child: 36. Ralph R. born 5 Aug 1905 Harlan Co., Ne.
Ralph Richard (Myron Aaron 3, Aaron D. 2, Richard 1) Lashbrook was born 5 august 1905 in Ne. the son of Myron Aaron and Catherine (rosenbrok) Lashbrook. He married ruthana Jones 10 August 1937 in Garden city, Ks. Ruthana was bron in Garden City, Ks, the daughter of Dr. L. L. Jones, a veterinarian. Ralph R. taught for many years at Kansas State University at Manhattan, Ks. children: 46 1. Ralph "Richard"b. 14 Oct 1940 Manhattan, Ks. 46 2. Lindab. 23 Sept 1943 Manhattan, Ks.
the book has info on aaron d. and richard if you want it.