Delmar Rial Lowell (November 29, 1844 – 1912) was a minister, Civil War veteran, American historian, and genealogist.
[1] Taking over 10 years of research by his cousin, Amos Lowell, Delmar spent nearly 15 more years researching and documenting the history of Lowell family in America starting with the founding patriarch in America, Percival Lowle (1571—1664).
Delmar's effort culminated in the 2 volume publication The Historic Genealogy of the Lowells of America from 1639 to 1899.
In the preface, Lowell notes that another descendant, Judge James H. Lowell, (Vol 1, p. 197) a native of Boston who eventually settled in Holton, Kansas (1842-1925), wrote the transatlantic history of the family contained in the genealogy, from Percival's emigration from England backward for nine generations: "We call special attention to this chapter as a most valuable part of this work."
His 2 volume book runs 826 pages and covers literally thousands of his kinsmen living and dead.