- A Bible record for Leonard, second son of George Michael Eller, gives his birthplace as Fort (Ford) Litters, North Carolina, but no record of such a place has been found. Another puzzling part of this record says Leonard's father was born in Bebon. Germany. Bebon may have been intended for Baden, but this is not certain.
A record cited by Hook (1957, p. 32) says Leonard was born in Germany, but most researchers say he was born in the United States.
He married Elizabeth Mast, daughter of John and Barbara Mast of Randolph County, North Carolina. From the late 1770s until after 1821 Leonard Eller owned land in Rowan and Randolph Counties, North Carolina. About 1801 he took his family to Miami County, Ohio, and later to Indiana, where some of his descendants still live.
Leonard Eller was a large land-owner in three states. He continued to own land in Randolph County, North Carolina until after 1821.
Davidson Co., NC, Deed Bk. 1:257-258. Abstract, 13 June 1821 Leonard Eller, County of Miami and State of Ohio. Land situated in Randolph County on Cariway where he did live and left in the hand of Jacob Hoover. Three tracts in Rowan, one on waters of Lick Creek, other on Sheets Creek in possession of Jacob Hoover, late dec'd. He now appoints Samuel Hoover of Randolph County Attorney for him. Wit John Hoover, Jr., Henry Hoover acting Justice of Peace in Ohio, William Norwood, one of the Judges of Court of Law and Equity and affirmed appointment." Note: For more on the Eller-Hoover relationships, see Lyle (1994). These Hoovers were of the ancestral line of President Herbert Hoover.
- "Leonard Eller, the 2nd son [of George Michael Eller], settled Ohio with Henry Fouts and Adam Eller in 1801, and built one of the first log cabins in that state. (Union township, Miami Co.) After the men cleared the land they returned to N.C. for their families. Leonard died in Hamilton County, Ind. leaving 950 pounds, which was worth nothing in those days."