1.  Marriage Record:

2.  Church Record of the Towamensing Union Church in Monroe County, Pa. [really Carbon Co., near Palmerton] (online at the Schoeler Genealogy web site):

Parents	Child & Dates	Sponsors
Nickolaus Beltz Katharina	Anna 18 Feb 1829 20 Apr 1829	David Boyer Anna Stroub
Nicolaus Bloss Katharine	Nathan 22 May 1829 28 Jun 1829	Henrich Remelig Anna Straub
Daniel Bloss Elisabeth	Daniel 21 May 1830 11 Jul 1830	Henry Remeli Anna Stroup
Michael Lauer Elis.	Methilda 16 Jul 1832 15 Dec 1832	Carl Bellford Anna Straub
Carl Bellford Anna	Johanes 29 Mar 1835 30 May 1835	David Straub Maria
Carl Belford Anna	Alexander 29 Mar 1837 28 May 1837	Andreas Siegfreid Maria
Thomas Stroub Abelone	Jacob 25 Apr 1838 24 Jun 1838	Carl Bellford Anna

Thomas STROUB is Anna's brother.

3.  1840 Census Index and Digital Images (online at Ancestry.com; Image #1 of 22; extracted by Diana Gale Matthiesen):¤•

1840

PA

Northampton [now Carbon] Co.

[Upper] Towamensing Twp.

pp. 248B-249A

Ln. 11

Chas Belford

101 010 000 - 100 010 010

0000010

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1835-1840	= Alexander (b. 1837)
1 male	10-14	1825-1830	= ?
1 male	20-29	1810-1820	= Charles (b. ca. 1811)
1 female	4 or under	1835-1840	= Harriet
1 female	20-29	1810-1820	= Anna (b. ca. 1811)
1 female	50-59	1780-1790	= mother?
1	person navigates canals, lakes, rivers

Anna's parents are both still alive and living together, so the elder woman is probably Charles's mother.  The teenage boy is probably Charles's youngest sibling; either that or Johannes is tallied in the wrong age class.  Listed next to Anna's married sister, Rebecca (STRAUB) BROWN, whose husband's occupation is also given as navigator of inland waters.

4.  1850 Census Index/Images (online at Ancestry.com; Image #4 of 39):  Upper Towamensing Twp., Carbon Co., PA, p. 394B, 23/23, enumerated 18 Sep 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):¤•

Charles Belford	38	M		farmer	600	Pa
Anne	39	F				"
Harriet	17	F				"
Elexander	12	M				"
Matilda	10	F				"
Elisabeth	8	F				"
Amanda	5	F				"
James	4	M				"
Amelia	3	F				"
Emma	1	F				"
Susan Belford	76	M				"
Selinda Stroup	24	F				"

Susan BELFORD is almost certainly Charles's mother.  Salinda STRAUB / STROUP is Anna's sister. 

5.  1860 Census Images (online at Ancestry.com; Image #36 of 36):  Lehigh Gap P.O., Lower Towamensing Twp., Carbon Co., PA, p. 78, PN 324, 2427/245, enumerated 31 Aug 1860 (extracted by Diana Gale Matthiesen):¤•

Chas Belford	50	M		Farmer	2500	1000	Pa
Anna	48	F					"
Alexr	25	M					"
Matilda	18	F					"
Eliza	17	F					"
Sarah A	15	F					"
James	15	M					"
Emeline	11	F					"
Emma R	9	F					"
Hannah P	5	F					"

Listed next to John FENSTERMACHER.

6.  1870 Census Images (online at Ancestry.com; Image #39 of 48):  Parryville P.O., Franklin Twp., Carbon Co., PA, p. 82A, PN 39, 261/282, enumerated 13 Jul 1870 (extracted by Diana Gale Matthiesen):¤•

Belford Charles	58	M	W	Farmer	6000	1000	Pennsylvania
_______ Anna	58	F	W	Keeping house			"
_______ Amelia	22	F	W				"
Keener William	18	M	W	Domestic Servt	15000	300	"
Straub Salinda	43	F	W	House Keeper			"
Belford Mary	30	F	W	House Keeper			"
_______ Charles	6	M	W				"
_______ Emma	4	F	W				"

Salinda STRAUB is Anna's sister.  Mary appears to be their widowed daughter-in-law. 

7.  1880 United States Census and National Index (LDS Family History Resource File: CD-ROM Library):¤•

Census Place: Parryville [Franklin Twp.], Carbon, Pennsylvania
Source: FHL Film 1255108; NARA Film T9-1108; Pg 516C
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
Charles BELLFORT	Self	M	M	W	67	PA	Farmer	PA	PA
Anna BELLFORT	Wife	F	M	W	67	PA	Keeping House	PA	PA
Charles BELLFORT	GSon	M	S	W	15	PA	Farmer	PA	NJ
Salinda STRAUP	SisterL	F	S	W	53	PA	Servant	PA	PA

8.  Archives of the STRAUB-L Mailing List (online at RootsWeb.com).