1.  Marriage Record:

2.  1820 Census Index/Images (online at Ancestry.com; Image #1 of 4; extracted by Diana Gale Matthiesen):

1820

PA

Huntingdon [now Blair] Co.

Antis Twp.

Roll M33_104

pp. 51B-52A

Ln. 22

James Hopkins Junr

000010-00100-0-200

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
male	26-44	1775-1794	= James
female	16-25	1794-1804	= Mary
2	persons engaged in agriculture

The only other HOPKINSes in Huntingdon County are James's brothers, Jonathan HOPKINS and Benjamin HOPKINS (both æ 26-44), who are also in Antis Township.

3.  1830 Census Index/Images (online at Ancestry.com; Image #7 of 14; extracted by Diana Gale Matthiesen):

1830

PA

Huntingdon [now Blair] Co.

Antis Twp.

Roll M19_166

p. 62

Ln. 11

Mary Hopkins

130 - 000 001

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1825-1830	= Miles (b. 1825/6)
3 males	5-9	1820-1825	= Samuel (b. 1824) = Turner (b. 1821/2) = William (b. 1820/1)
1 female	30-39	1790-1800	= Mary

Listed next to Joseph HOPKINS (æ 50-60), who is listed next to Jonathan HOPKINS (æ 40-50), who are Mary's brothers-in-law.

4.  1840 Census Index/Images (online at Ancestry.com, Image #1-2 of 26; extracted by Diana Gale Matthiesen):

1840

PA

Huntingdon [now Blair] Co.

Antis Twp.

Roll M704_462

pp. 392B-393A

Ln. 16

Mrs Hopkins

001 300 - 000 010 100

0300000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	10-14	1825-1830	= Miles (b. 1825/6)
3 males	15-19	1820-1825	= Samuel (b. 1824) = Turner (b. 1821/2) = William (b. 1820/1)
1 female	20-29	1810-1820	=
1 female	40-49	1790-1800	= Mary
3	persons employed in agriculture

Listed one line below "J. HOPKINS" (æ 20-30) and two lines above another "J. HOPKINS" (æ 50-60), who is probably Mary's brother-in-law, Jonathan HOPKINS.

5.  1850

6.  1860

7.  1870 Census — Mary is living with her second husband, Jacob LONG, listed eight households from her son, Samuel G. HOPKINS, in Le Claire Twp., Scott Co., IA (see Jacob's family group sheet for the record).

8.  Huntingdon County, Pennsylvania, Will Testators (online at the web site of SAMPUBCO, Salt Lake City, UT — copies available for a fee):

Testator	Residence	State-Co-Vol-Pg
HOPKINS, JAMES	ANTIS	PA-31-3-266

Vol. 3 covers years 1822 to 1835.  The index covers 1787-1908, and James's will is the only HOPKINS will recorded in the county, at least as indexed here.

.  Anon.  1882.  History of Scott County, Iowa.  Inter-State Publ. Co., Chicago (excert posted by Deborah Gerischer to the Scott County, Iowa, message board online at Ancestry.com / RootsWeb.com).  Biographical sketch of son, Samuel G. HOPKINS.

.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).

.  Emails from Danni HOPKINS, wife of Craig Anthony⁷ HOPKINS, Sr. [John Wesley⁶, Robert Huston⁵, John Wesley⁴, Samuel³, Jonathan², James¹].