Benjamin Piatt was born c1814 in Ohio (probably Adams County) to Benjamin and Mary 'Polly' Waddell Piatt. There are some differing opinions of the biography of Benjamin's father, Benjamin Sr. However, a sketch that appeared in
"A History of Adams Co OH," by Nelson W Evans & Emmons B Stivers (1900),
pp 331 & 336 gives: Benjamin Piatt was born in 1763 in Virginia. He came to Adams County in 1810, and bought land in Tiffin Township. He was a first lieutenant under General McCullough. He married Polly Waddle in Virginia, and was a pensioner. He died in 1851, at the age of ninety-eight [my note: Does not add - born 1753 if 98. MCP], and is buried near West Union, probably in the Trotter Cemetery. No stone marks his grave. He had a son, Benjamin, who was living in 1898, near West Union. A daughter, Margaret Denning, lived near Stone Chapel in 1898. He had six children, three sons and three daughters. His son Jacob married Polly Trotter. His son John married Hester Black. Benjamin married Myra Bayless. Margaret married Newton Denning. Elizabeth married Lewis Trotter. Polly married John Black.
He married Elmira 'Myra' Lavina Bayless. They had the following known children:
Sarah J Piatt b: c1847 OH (probably Adams Co)
Martha Piatt b: c1849 OH (probably Adams Co)
Mary Ann 'Polly' Piatt b: c1852 OH (probably Adams Co)
Elizabeth M 'Betsy' Piatt b: c1861 OH (probably Adams Co)
Luella Piatt b: c1865 OH (probably Adams Co)
Benjamin Dickey 'Alphonse' Piatt b: c1866 OH (probably Adams Co)
Benjamin and Mary can be found on the 1850 census in Tiffin Township, Adams County, Ohio, as follows:
Piatt, Benjamin age 36 born OH / M / Laborer
Piatt, Louisa B age 24 born OH / F
Piatt, Sarah J age 3 born OH / F
Piatt, Martha age 1 born OH / F
This family was enumerated 30th Aug 1850 #1465/1465 pg 148. Their neighbors were #1459 Levi Scott w/ John Scott, #1460 ? McCarty, #1461 Daniel Denning, #1462 John B Denning, #1463 Samuel Stuart, #1464 Franklin Seamon, * and #1466 Benjamine Piatt Sr.
Next door was Benjamin's parents:
Piatt, Benjamine Sr age 94 (could be 98) born MD / M
Piatt, Mary age 72 born PA / F
This family enumerated 30 Aug 1850 #1466/1466 on page 148. Other neighbors were #1467 Elam Sparrow w/ Elizabeth Young, #1468 James Lindsey, #1469 Willis E/C Denning, #1470 John Ellison, #1471 James Ellison, #1472 Crawford Ralston, and #1473 Alexander Compton.
Also in Tiffin Township was Benjamin's brother, Jacob Piatt, with his wife and six children.
Piatt, Benjamin age 44 born OH / wm / farmer / $0/$100 / cannot write
Piatt, Luvina age 36 born ditto (OH) / wf / keeping house / cannot write
Piatt, Polly A age 8 born ditto (OH) / wf / cannot read
Piatt, Jackson P age 5 born ditto (OH) / wm
Piatt, Hannah age 3 born ditto (OH) / wf
Piatt, Isabell age 6/12 born ditto (OH) / wf
This family was enumerated #793/799 pg 111 (ancestry.com image 23/45). Neighbors were #791 Rachel ?Sunter; #792 Noah Young, #794 Elizabeth Mahony, #795 Ira Trotter, and #796 Albert Peuce. Also in Tiffin Township were Robert and Ann Piatt and family, Hetty Piatt and family, and the Jacob and Mary Ann Piatt family.
On the 1870 census of West Union, Tiffin Township, Adams County, Ohio:
Piatt, Benjamin age 56 born OH / wm / farmer / $0/$200
Piatt, Elmira age 48 born OH / wf / keeping house / cannot write
Piatt, Jackson age 16 born OH / wm / works on farm / attended school / cannot write
Piatt, Hannah age 12 born OH / wf / at home / attended school / cannot write
Piatt, Belle age 10 born OH / wf / at home (marked through)
Piatt, Betsy age 9 born OH / wf / at home (marked through)
Piatt, Luella age 4 born OH / wf / at home (marked through)
Piatt, Alphonse age 4 born OH / wm / at home (marked through)
This family was enumerated #185/191 pg 502 or 24 (ancestry image 11/35).
By the 1880 census they appeared in Tiffin Township, Adams County, Ohio:
Piatt, Benjamin age 64 born OH / MWM / Farmer / father/mother born PA
Piatt, Leina (wife) age 56 born OH / MWF / Keeping House / father/mother born OH
Piatt, Belle (daughter) age 20 born OH / SWF / At Home / father/mother born OH (same on all children)
Piatt, Betsy M (daughter) age 19 born OH / SWF / At Home
Piatt, Luella (Daughter) age 15 born OH / SWF
Piatt, Benjamin Dickey (son) age 14 born OH / SWM
Piatt, Jackson (grandson) age 4 born OH / SWM
This is an abstract from familysearch.org; page 230A - I did not view the original entries. Other Piatt families nearby in Tiffin Township were: Horatio and Ann Piatt family, Hannah Piatt and daughters, Lewis B and Scottie M A Piatt and family living with her parents - William and Rebecca Baldwin, Jacob and Mary Ann Piatt family, James and Sarah Piatt family, Jacob and Aura Piatt family, and the Andrew J and Elizabeth Piatt family. In neighboring West Union Township was Benjamin's son, Jackson Pierce Piatt.
Piatt Family Newsletter, Volume 2, 1987
Piatt Family Newsletter, Volume 6, 1991
"A History of Adams Co, OH" by Nelson W Evans & Emmons B Stivers (1900)