might this be him:
1850 IA Boone Co
living with the Daniel Spalding family
Henry Lott 42 PA
Jemima Lott 21 MA
Alfred Lott 11 OH?
Henrietta Lott 1 IA
Lauraette Lott 5/12 IA
1860 IA Boone Co Worth
(this looks like Henry's daughters)
living with the Wm Dickerson family
Ette Lott 10 IA
Laura Lott 8 IA
There is a book called"
The biographical record of Webster Co IA
Prominent among the early settlers and representative pioneers of Webster Co is numbered Franklin McGuire of Fort Dodge, who has made his home here sind 1849 and has therefore witnessed it entire growth and development. He was born in Ray Co, MO, Mar 11, 1833 a son of Francis and Rebecca McGuire. His ancestors were among the pioneers of both KY and TN, and his father was a native of the latter state. After themothe's death, which occurred in MO, the father and children came to Webster Co, IA, in the spring of 1849, the trip being made...
In the family of this honored pioneer were the following children...and Jemima, wife of Henry Lott, a famous Indian fighter. The fact that Mr. Lott had killed so many red men was probably the cause of the Spirit Lake massacre, in which the Indians tried to revenge themselves. They kidnapped his son, whom they allowed to freeze to death, and killed a great many white settlers, in the region of Spirit Lake. Mr Lott then left that locality and went to CO. He settled in Webster co prior to our subject's locating there, and soon afterward ...http://www.iowanationalguard.com/museum/ia_history/SpiritLak...
I'm not sure if this is helpful. I can't seem to put him with any Lott family.