1.  Marriage Record:

2a.  1850 Census Index/Images (online at Ancestry.com; Image #11 of 38):  Amity Twp., Berks Co., PA, p. 434A, 77/84, enumerated 14 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Jonas Rhoads	32	M		Farmer		Berks Co
Rachael [Hunter] Rhoads	31	F				do
[Jonas & Rachael's children]
Chas Stroup	20	M		Laborer		do
Abram Rhoads	27	M				do
Sarah Faber	40	F				do

Jonas RHOADS is Abraham's brother, and Charles STROUP is almost certainly Harriet's brother.  They are living four doors from Harriet, who is living with an elderly Ann HUNTER, who is almost certainly Rachael's mother. 

2b.  1850 Census Index/Images (online at Ancestry.com; Image #10 of 38):  Amity Twp., Berks Co., PA, p. 433B, 73/80, enumerated 14 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Anna Hunter	73	F				Berks Co
Harriet Stroup	22	M				do

3.  1860 Census Images (online at Ancestry.com; Image #14 of 40):  Amity Twp., Berks Co., PA, p. 88, PN 14, 107/110, enumerated 11 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Abrahm Rhoads	38	M		Farmer	4000	675	Berks
Harriet   "	32	F					"
Irvin     "	5	M					"
Calvin    "	1	M					"
Jeremiah Pyle	16	M					"
Susan Goodman	15	F					"

Living between Hiram LUDWIG & Elam LUDWIG.

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

5.  Anon.  1911.  Genealogical & Biographical Annals of Northumberland County.  J.L. Floyd & Co., Chicago. Biographical sketch of Walton F. RHODES, which mentions our subject.