Lowell Beachler writes "great-grandmother Malinda Miller Blocher was daughter of George and Caroline Boomershine Miller. He had 3 wives, 19 children. Wives were Catherine Warner, Caroline, and Barbara Bollinger. We are from the middle wife. The old Miller home in Darke Co., Ohio still stands. They came from York Co., Pa., in 1832 to Preble Co., Ohio, from there to Darke Co."

There are two George Miller families in the 1850 Darke Co. census who might fit. (There are also two others, but their wives' names are Mary and Elizabeth.) Without more info about their birthdates, I cannot tell which of these two entries is for this George Miller.

In German twp, on page 391, taken Dec. 6:
Miller, George 30, Caroline 22, Matilda 5, Catherine 3, Eliza 1. Parents born in Pennsylvania, all children in Ohio. It is possible the transcriber misread Malinda as Matilda (I'm using an indexed Ohio Genealogical Society typescript compilation for this census), but if so, George must have had no surviving children by his first wife.

In Monroe twp, on page 403, taken Dec. 4:
Miller, George 39, Catharine 37, John 15, Catharine 13, Jacob 11, Polly 9, Abraham 5. Abraham born in Ohio, all others in Pennsylvania. So if the census is correct, this family moved from PA to Ohio between 1841 and 1845. Also, if it is Malinda's family, she was born after 1950.