1.  Marriage Record:

2.  1830 Census Index/Images (online at Ancestry.com):  can't find.

3.  1840 Census Index/Images (online at Ancestry.com, Image #1-2 of 14; extracted by Diana Gale Matthiesen):•

1840

PA

Montgomery Co.

Horsham Twp.

Roll 477

pp. 9B-10A

Ln. 26

George Dotz

010 000 100 - 110 001

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	5-9	1830-1835	= John (b. 1831/2)
1 male	40-49	1790-1800	= George
1 female	4 or under	1835-1840	= Alice (b. 1837/8)
1 female	5-9	1830-1835	= Catharine (b. 1834/5)
1 female	30-39	1800-1810	= Susanna (b. 1809/10)
1	person employed in agriculture

Where is Philip?  Is this enumerator error?

4a.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #23 of 24):  Montgomery Twp., Montgomery Co., PA, Roll M432_800, p. 102A, 161/172, enumerated 22 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):•

Susanna Dotts	40	F			1000	Penna
Philip    "	21	M		Farmer		"
Catharine "	15	F				"
Alice     "	12	F				"
Amanda    "	7	F				"
George    "	6	M				"

Where was Philip in 1840?

4b.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #142 of 162):  Spring Garden (Ward 3, 1st Pct.), Philadelphia Co., PA, Roll M432_818, p. 516B, 428/1015, enumerated 14 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Philip Stang	47	M		Carpenter	7500	Pennsylvania
Catharine Stang	40	F				"
John Dotz	18	M		Brick Layer		"

Philip STONG is Susanna's brother.  Is John our subject's son?