1.  Marriage Record:

2.  1790 Census Index/Images (online at Ancestry.com):  not found.  There is a Stophel MILLER in Lancaster Co., PA — too old to be our subject — who appears to be the one who shows up in Highland Co., OH, in 1820. 

3.  Census Index:  U.S. Selected Counties, 1800 (Broderbund CD-312):  not found.  There was no 1800 census in Ohio because it was not yet a state.  Where available tax lists are substituted on the CD.  There is no Stophel/etc. MILLER found, anywhere, nor any "S. MILLER" in Ohio.  There are two unknown MILLERs in Ohio: one in Washington Co. in 1800 and one in Hamilton Co. in 1806.

4.  1810 Census Index/Images (online at Ancestry.com):  not found.  The 1810 census of Ohio was lost (except for Washington Co.).  There is only one Stophel/Stofel MILLER indexed on this CD and he is in Montgomery Co., MD.  I don't believe he is our subject because he has no children and the woman living with him is in the next older age class.  It's likely our subject is in Ohio, and tax rolls could reveal him — thankfully, he isn't named John! 

5.  1820 Census Index/Images (online at Ancestry.com; Image #3 of 3; extracted by Diana Gale Matthiesen):¤

1820

OH

Columbiana Co.

Knox Twp.

p. 32B

Ln. 2

Stophel Miller

310101-11101-0-200

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
3 males	9 or under	1810-1820	= Son C = Son B = Son A
1 male	10-15	1804-1810	= Daniel
1 male	19-25*	1794-1801	= Jacob
1 male	45 or over	in or bef. 1775	= Stophel
1 female	9 or under	1810-1820	= Daughter C
1 female	10-15	1804-1810	= Daughter B
1 female	16-25	1794-1804	= Daughter A
1 female	45 or over	in or bef. 1775	= wife
2	persons engaged in agriculture
*In the 1820 Census, the third column is age class 16-18 and the fourth column is age class 16-25; therefore, any individual in column three is duplicated in column four.  By subtracting the number in column three from the number in column four, you can create an age class "19-25."

Listed 14 lines from William STROUP, future father-in-law of two of his daughters.  The only other MILLERs in Knox Township were Abraham and Samuel, both age 26-44.  There is one other Stofel MILLER indexed in the 1820 census, in Brush Creek Twp., Highland Co., OH.

6.  1830 Census Index/Images (online at Ancestry.com; Image #1 of 18; extracted by Diana Gale Matthiesen):¤

1830

OH

Columbiana Co.

Knox Twp.

p. 506

Ln. 14

Stophel Miller

002 110 001 - 000 100 010

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 males	10-14	1815-1820	= Son C = Son B
1 male	15-19	1810-1815	= Son A
1 male	20-29	1800-1810	= Daniel
1 male	60-69	1760-1770	= Stophel
1 female	15-19	1810-1815	= Daughter C
1 female	50-59	1770-1780	= wife

Listed next to Michael MOUNTZ, who is the brother of Sarah (MOUNTZ) WOLF, whose daughter, Sally WOLF, married Conrad STROUP, brother of two of Stophel's sons-in-law. 

7.  1840 Census Index/Images (online at Ancestry.com, Image #19-20 of 24 — mis-indexed "Stephen"; extracted by Diana Gale Matthiesen):¤

1840

OH

Columbiana Co.

Knox Twp.

pp. 23A-23B

Ln. 25

Stopher/Stophel Miller

000 020 001 - 000 010 010

_______

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 males	20-29	1810-1820	= Son B or C = Son A or B
1 male	60-69	1770-1780	= Stophel
1 female	20-29	1810-1820	= Daughter A
1 female	50-59	1780-1790	= wife
1	person employed in agriculture

Stophel and his wife should both be in the next higher age class, but surely these are our subjects.

8.  Census Index:  U.S. Selected Counties, 1850 (Broderbund CD-317):  not found, which is no surprise given their age, but neither do I find their son, Joseph and Daniel, at least not in Columbiana Co., OH.