Rose Alcantara, 39 weeks pregnant, April 9, 1994; Caira Button, born April 19, 1994, photographed in San Francisco.

Jacalyn Buettner, 39 weeks pregnant, April 30, 1994; Daniel Buettner-Foure, born May 13, 1994, photographed in San Francisco.

Esther Crandall, 39 weeks pregnant, January 2, 1994; Amy Crandall, born January 14, 1994, photographed in San Francisco.

Amber Reid Wasniak, 39 weeks pregnant, December 22, 1995; Colton Reid Wasniak, born January 5, 1995, photographed in San Francisco.

Christine D’Ercole, 39 weeks pregnant, April 1, 1999; Milan D’Ercole, Born April 1, 1999, photographed in New York City.

Michael, born December 26, 1995, and Danny, born May 11, 1994.

Zaire and Ariyan, born July 12, 1998. Little boys do not generally like standing next to girls. But in the case of twins, the boys are very comfortable near their twins.

Lindsay, born October 13, 1993, photographed in New York City

Marlena, born June 2, 1995, photographed in New York City. For each of their annual photographs, the kids were asked to bring their favorite “outfits” or costumes of their favorite fun activity as well as a bathing suit.

Marlena, born June 2, 1995, photographed in New York City. For each of their annual photographs, the kids were asked to bring their favorite “outfits” or costumes of their favorite fun activity as well as a bathing suit.