— born in Philadelphia, Philadelphia Co., PA
2.  Alexander "Alex" CLARK, b. 1852/3
3.  Mary CLARK, b. 1854/5
4.  Margaret "Maggie" CLARK, b. 1856/7
5.  Anna L. "Annie" CLARK, b. Feb 1860
6.  William CLARK, b. 1862/3
7.  Robert CLARK, b. 1864/5
8.  Jennie CLARK, b. 1867/8

1.  Marriage Record:

2.  1850 Census Every-Name-Index/Images (online at Ancestry.com):

3.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #74-5 of 188):  Philadelphia P.O., Philadelphia (Ward 20), Philadelphia Co., PA, Roll M653_1171, pp. 597-598, PN 95-96, 611/773, enumerated 15 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Wm Clark	30	M		Laborer			Ireland
Margaret "	29	F					"
James    "	10	M					Penn
Alex.    "	7	M					"
Mary     "	5	F					"
[page next]
Margaret Clark	3	F					Penn
Annie      "	3/12	F					"

4.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #150-151 of 207):  Philadelphia P.O., Philadelphia (Ward 20, District 68), Philadelphia Co., PA, Roll M593_1407, pp. 665B-666A, PN 150-151, 1102/1218, enumerated 9/11 Jul 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Clark Wm	42	M	W	Labourer		100	Ireland
_____ Margt	40	F	W	Wash Woman			Ireland
_____ James	20	M	W	Labourer			Ireland
_____ Alex	17	M	W	Errand Boy			Penna
_____ Mary	15	F	W	at Home			"
_____ Margt	12	F	W	at School			"
[nest page]
Clark Saml	10	M	W	at School			Penna
_____ Wm	7	M	W				"
_____ Robt	5	M	W				"
_____ James	2	M	W				"
McCormack Pat	25	M	W	Labourer			Ireland
Quigley John	32	M	W	"			Penna
Weld Micha	17	M	W	"

"Saml" should be Anna and female; the younger "James" should be Jennie and female.

5.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #25 of 36):  1743 Mervine Street, Philadelphia City (Ward 20, Div. 28), Philadelphia Co., PA, Roll T9-1180, p. 351A, PN 25, SD 1, ED 409, enumerated 9 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):

1880:  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

8

9

10

13

20

24

25

26

*

1743

173

189

Clark Wm

W

M

53

/

Farmer

/

Ireland

Ireland

Ireland

_____ Margt

W

F

51

Wife

/

Keeping house

Ireland

Ireland

Ireland

_____ Maggie

W

F

23

Dau

Works in Cotton Mill

Penna

Ireland

Ireland

Stroup Annie

W

F

20

Wife

/

Penna

Ireland

Ireland

______ Chas

W

M

25

Husband

/

Drives wagon

Penna

173

190

Clark Wm

W

M

17

Son

/

Laborer

Penna

Ireland

Ireland

_____ Robt

W

M

14

Son

/

Works in Cotton Mill

Penna

Ireland

Ireland

_____ Jennie

W

F

11

Dau

/

Works in Cotton Mill

Penna

Ireland

Ireland

*Mervine Street

6.  1890 Census:  the 1890 Census Population Schedules were destroyed.