This is what I have found so far.
Herman Heinrich Barlage came to this country when he was 28. He met his wife, Catherine Ording, in Dayton where he was working for a distillery. She was also from Oldenburg but I don't know if she was from Dinklage. He may have been an only child. I found his obituary but the print makes it hard to read besides being in German. They came to Ft. Loramie and had a farm in section 7 in McLean Twp. He died in 1914 at age 86. Their children were Catherine, Henry, Joseph and Mary. Joseph seems to have inherited the farm.
The earliest I have is Joseph born in 1820 and immigrated in 1836. His wife was Catherine Brandewie. They had 9 or 10 children and had a farm in section 6, Jackson Twp, Auglaize Co. He died in 1900 at age 79. I have an obituary but it says little except what the area was lacking when he came here. He immigrated in 1836.
I'm not sure about this family. There seem to have been several and I can't tell if they were related. I don't know if there was only one immigrant with children or if there were several brothers. John Bramlage owned the flour mill in Loramie. Henry Bramlage Sr. is mentioned in Annals of St. Michael's as one of the parish pioneers.
There are several Grieshops. There are 3 Henry Grieshops. One was born in 1833 and died in 1908 in Minster. He was married twice. Henry Grieshop Sr. was born in 1798 and died in 1889 at age 91 in Egypt. There were 2 Henrys born in 1805 and 1810 and lived in Chickasaw. More research is required.
Bernard Prenger was born in 1832 and came to the US at age 7 with his parents. His obituary mentions a stormy sea voyage. It looks like his parents died early leaving 3 children alone. At age 23 he married Agnes Albers. She was born in Ohio. They lived in Deiters school district. Bernard died in 1915. His parents were Herman Marcus Prenger and Katharina Middendorf. The immigrated in 1837.
Clemens Seger was married to Elizabeth. They lived in section 4 in Dirksen school district and had 12 or 13 children. I think he was born in 1820 and may have had more than one wife and died in 1875.
I believe the immigrant was Arnold born in 1820. In 1850 his wife was named Ann and in 1860 his wife was named Margaret. At least some of his children were named Henry, John, Mary and Catherine. Henry was born in 1834 in Oldenburg. His wife was Maria. He had children Herman, August and Mary. They lived in Deiters school district. They were neighbors of Prengers. In 1910 Herman and August were living together in Franklin Twp. I don't think either ever had children but August was married. There was a Joseph Sextro born in 1853 in Germany and whose wife was, yep, Mary born in 1867. They had 5 children.
If anyone wants to dispute or clear up any of this information PLEASE email me. I would also like to have photos of the early families. And let me know if you know of any other families from Dinklage.