In the book's own words, not ours, with obvious scanning errors fixed. Families often supplied these stories to the publisher, so check key dates.
Born 1840
From Biographical records of Linn County, Iowa .. (1901)
PETER T. HENDERSON.
Peter T. Henderson, an extensive and prosperous farmer, whose homestead is pleasantly located on section 9, Jackson township, near the village of Coggon. has been a resident of Linn county since 1872. He is a native of Canada, born in the province of Quebec, on the 13th of February,
[This passage is too damaged in the scanned book to reproduce. See the original book.]
In 1874 Mr. Henderson married Miss Hannah J. Henderson, who was also hi rn in Canada, June 24, 1850, and when iWe years old came to this county with her parents, William and Alev (Bursell) Henderson. The family located in Jackson township, where her father engaged in farming thrnugliout the remainder uf his life. The mother also died there. Our subject and his wife have two children, namely: Aley, now the wife of Harry Kerr, a farmer of Jackson township; and Walter E., who aids his father in the work of the home farm. Mr. Henderson has never sought or cared for official honors, but is a stanch supporter of the Republican party and its principles. On coming to this county he was in limited circumstances, and to his own untiring industry, perseverance and determination to succeed is due his prosperity. During his long residence here he has made a host of warm friends who esteem him highly for his genuine worth, and he has the respect and confidence of all whij know him. His wife is an earnest and consistent memlier of the Chapel Hill Congregational church of Jackson t'nvnship.
As printed in Biographical records of Linn County, Iowa .. (1901). See the original pages. Wording is the original; obvious scanning errors have been corrected, and a few may remain.
Their biographies name Peter T. Henderson: Henry Henderson (b. 1848) James Henderson (b. 1840) Peter G. Henderson (b. 1842) Walter E. Henderson (b. 1882) Harry O. Bradley (b. 1857)
The printed record stops around 1901. We trace your line from there down to you, with every source cited.