Question: What is the place of birth of Jehu Grubb's father?

Knowledge 1: Jehu Grubb
Jehu Grubb (a.k.a. John Grubb) (c. 1781 – 1854), unacknowledged son of the prominent ironmaster Curtis Grubb, was an early settler who became a leading citizen in Plain Township, Stark County, Ohio.Grubb served in the War of 1812, was a justice of the peace, served in the Ohio House of Representatives in 1828 and 1832, and in 1852 donated land for the Whitehall School.Grubb was often called John in various documents, and seems to have used both names himself.His stepson built the beautiful and historic Jacob H. Bair House on what been a corner of Grubb's farm. [SEP] Knowledge 2: Curtis Grubb
Curtis Grubb (17301789), Patriot and oldest son of Peter and Martha Bates Grubb, was a second-generation member of the Grubb Family Iron Dynasty along with his younger brotherPeter Jr. The brothers operated the Cornwall Ironworks, making significant contributions to the American Revolutionary War effort, and Curtis served several terms in the Pennsylvania Provincial Assembly.The brothers inherited the ironworks from their father in 1754, with Curtis (the oldest) receiving a two-thirds interest and Peter one-third.The brothers took over operation of the ironworks about 1765 and expanded it successfully.Curtis operated the Cornwall Furnace that produced pig iron, and Peter, who had more ironmaking experience, ran the nearby Hopewell Forges on Hammer Creek that produced more valuable bar iron.In 1773, Curtis paid taxes on at the furnace location and Peter paid taxes on at the forges location, reflecting both the size of the operation and their proportional ownership.They operated the business through and after the Revolution, becoming quite prosperous until they died, Peter in 1786 and Curtis in 1789.Most of the Cornwall ironworks fell out of family hands during the period 1783 - 1802, to Robert Coleman who became Pennsylvania's first millionaire.But a portion, including rights to access the ore, remained with Peter Jr.'s heirs, who added to it to become major Pennsylvania producers of iron in the mid-19th century, operating out of Mount Hope Estate.
Knowledge 1: Jehu Grubb
Jehu Grubb (a.k.a. John Grubb) (c. 1781 – 1854), unacknowledged son of the prominent ironmaster Curtis Grubb, was an early settler who became a leading citizen in Plain Township, Stark County, Ohio.Grubb served in the War of 1812, was a justice of the peace, served in the Ohio House of Representatives in 1828 and 1832, and in 1852 donated land for the Whitehall School.Grubb was often called John in various documents, and seems to have used both names himself.His stepson built the beautiful and historic Jacob H. Bair House on what been a corner of Grubb's farm. [SEP] Knowledge 2: John Templeton (botanist)
John Templeton( 1766–1825) was an early Irish naturalist and botanist.He is often referred to as the" Father of Irish Botany".He was the father of naturalist, artist and entomologist Robert Templeton.
Knowledge 1: Jehu Grubb
Jehu Grubb (a.k.a. John Grubb) (c. 1781 – 1854), unacknowledged son of the prominent ironmaster Curtis Grubb, was an early settler who became a leading citizen in Plain Township, Stark County, Ohio.Grubb served in the War of 1812, was a justice of the peace, served in the Ohio House of Representatives in 1828 and 1832, and in 1852 donated land for the Whitehall School.Grubb was often called John in various documents, and seems to have used both names himself.His stepson built the beautiful and historic Jacob H. Bair House on what been a corner of Grubb's farm. [SEP] Knowledge 2: Obata Toramori
He was the father of Obata Masamori.

Answer: Pennsylvania