1.  Marriage Record:

2.  1840

3.  1850 Census Every-Name-Index/Images (online at Ancestry.com; Image #87 of 140 — indexed "Fererma Jeten" and "Harrietta Jaten"):  Allegheny City (Ward 3), Allegheny Co., PA, Roll M432_744, p. 140A, 736/801, enumerated 10 Oct 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Ferenna Iten	47	F		Widow	$3000	Switzerland
Daniel Reckenbach	22	M		Wall paper merchant	none	Pa
Mary       "	21	F				Pa
John F     "	2	M				Pa
Margaret   "	20	F				Pa
Sarah      "	16	F				Pa
Henrietta Iten	12	F				Pa
Amelia      "	10	F				Pa
George C Reckenbach	5/12	M				Pa

Daniel, Margaret, and Sarah RECKENBACH are Verena's children from her first marriage.  Mary is Daniel's wife, and John F. is their son.  George is presumably Verena's grandson, though if he is Daniel & Mary's son, it makes no sense for him to have been listed last.

4.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #40-41 of 77):  Pittsburgh P.O., Reserve Twp., Allegheny Co., PA, Roll M653_1066, pp. 999-1000, PN 39-40, 239/302, enumerated 13/14 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Adam Reineman	39	M		Gentleman	35,000	50,000	Elect Hessen
Elizabetha Reineman	36	F					Pennsylvania
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August Reineman	11	M					Pennsylvania
Emma Reineman	9	F					do
Henrietta Reineman	6	F					do
Edw Reineman	4	M					do
Adolph Reineman	2	M					do
Henry Reineman	3/12	M					do
Verena Itin	58	F		Widow Lady	6,000	22,000	Switzerland
Sarah Rickenbach	25	F		Spinster	4,000	12,000	Pennsylvania
Henrietta Itin	20	F		do		7,000	do
Franciscus Helbling	49	M		Professor			Switzerland
Louisa Miller	16	F		Servt girl			Wurtemberg

Elizabeth (REICHENBACH) REINEMANN and Sarah RICKENBACH are Verena's children from her prior marriage.

5.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #253 of 258):  Allegheny City P.O., Allegheny City (Ward 4), Allegheny Co., PA, Roll M593_1291, p. 459A, PN 253, enumerated 9 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

1870:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
1	2	3	4	5	6	7	9	10	11	12	19
1382	1873	Straub Theodor	33	M	W	Brewer	3500	Penna	/	/	/
		"   Henrietta	30	F	W	Keep house		"	/	/
		"   Oscar	6	M	W			"
		"   Edward	4	M	W			"
		"   Theodor	1	M	W			"
		Iten Verona	70	F	W		32000	Switzerland	/	/

6.  1880 Census Every-Name-Index/Images (online at Ancestry.com):  not found.