Interclass and Intraclass Marriages (thousands)
I. II. III. IV. V. Tot.
I. [341] 396 303 317 158 1515
II. 410 [600] 568 625 306 2509
III. 317 458 [882] 972 435 3064
IV. 323 548 1004 [1777] 595 4247
V. 202 307 523 860 [1857] 3749
Tot. 1593 2309 3280 4551 3351 15084

Couples cross-classified by husband's father's occupational category (row) and wife's father's occupational category (column).  Cell entries are numbers of marriages (in thousands) with wives ages 22-41, estimated for the entire U. S., based on 1962 OCG sample data.

Occupational categories:  I. Professional and managerial.  II. White-collar.  III. Upper blue-collar.  IV. Lower blue-collar. V. Farm.

Source:  Page 753 of:  Zick Rubin.  1968.  "Do American Women Marry Up?"  American Sociological Review  33 (No. 5, October): 750-760.  [The entire article is available on http://www.jstor.org.]