Milestones: Mar. 8, 1968

Married. Martha Chaffee, 30, widow of Astronaut Roger Chaffee, who died in the Apollo capsule fire 13 months ago; and William Canfield, 41, Texas realtor; both for the second time; in a Lutheran ceremony; in Houston.

Married. Amy Vanderbilt, 59, oracle of manners whose Complete Book of Etiquette has sold 1,500,000 copies to date; and Curtis Kellar, 51, a Mobil Oil Corp. lawyer; he for the second time, she for the fourth; in Manhattan.

Married. Rómulo Betancourt, 60, former President of Venezuela (1959-64) and still its most powerful politician; and Child Psychologist Renee...