5 Crèvecoeur, Letters from an American Farmer, letter XI.

6 Joseph Oxley, “Joseph’s Offering to His Children,” ms. HSP; Abigail Pemberton to Israel Pemberton, 5 day, 4 mo 1700, ms. HAV.

Group

Cohort

All

Complete

Incomplete

n

Philadelphia Elites

m. 1700-75

7.5

9.2

6.0

42

 

m. 1776-1825

7.9

9.1

5.8

46

N.J. and Pa. Quakers

b. before 1730

6.7

7.5

5.4

 

 

b. 1731-55

5.7

6.2

4.4

 

 

b. 1756-85

5.0

5.1

4.8

 

 

all cohorts

5.7

6.0

4.9

276

Germantown Quakers

first settlers

5.8

 

 

14

Pa. Schwenkfelders

m. 1735-64

 

5.3

 

28

 

m. 1765-89

 

6.1

 

39

N.J. and N.Y. Dutch

m. 1685-89

 

8.9

 

34

 

m. 1760-89

 

7.0

 

46

New Paltz Huguenots

m. 1750-74

 

7.3

 

28

 

m.1775-79

 

8.9

 

34

Sources: Louise Kantrow, “The Demographic History of a Colonial Aristocracy: A Philadelphia Case Study” (thesis, Univ.of Pa., 1976), 103-8; Robert V. Wells, “Family Size and Fertility Control in Eighteenth Century America: A Study of Quaker Families,” PS 25 (1971), 73-82; Stephanie Wolf, Urban Village (Princeton, 1976), 269; unpublished family reconstitution studies of Schwenkfelder, Dutch and Huguenot families prepared for the author by Lawrence J. Kilbourne.