My great great grandfather, Richard Nun Allen (1819-abt.1899), was the brother of Robert Thomas Pert Allen, as well as Dorothea Elizabeth Allen (abt. 1826-1871), the wife of banker Jay Cooke. R.N., a professor at the Kentucky Military Institute, accompanied R.T.P. to California when the former was appointed General Mail Agent for the territory in 1849. According to Kenneth Kesselus, author of "Bastrope County: 1846-1865," R.T.P. had a son named Robert D. Allen. After the War, R.T.P. returned to Bastrope Military Institute only to leave in 1866. From the then until death near Orlando FL I have little knowledge of R.T.P. It appears, with a loan from brother-in-law, Jay Cooke, he returned to Kentucky Military Institute. I am seeking any information on the ancestry of his parents, Richard and Sarah Hughes Allen.Also, the dates of their birth, death, origins, and when did they arrive in America.It is my understanding they came from the U.K. in the late 18th century.