American Joan Gocha is a former top international fashion and beauty model that worked professionally during the 1970s-1980s and was represented by Ford (New York). She landed cosmetics contracts and became the very recognizable face of Mary Kay Cosmetics. She married fellow Ford model William Robinson French and they became the parents of actress Kate French (The L Word).
 

- Kate French's Tumblr

"Kate Lauren French was born in Flemington, New Jersey.[1] Her parents, Joan Gocha and William Robinson French are former Ford models. Her mother is now a jewelry designer; and her father works in real estate.[citation needed] French spent her childhood years in South Kingstown, Rhode Island, and Lambertville, New Jersey. Her family then moved to New York where they settled in Quogue on Long Island and her mother remarried. French graduated from Westhampton Beach High School in 2003."
- Excerpt from wiki/Kate_French (link below)

Additional links about Joan:
https://en.wikipedia.org/wiki/Kate_French
http://picturesofbeautifulwomen.blogspot.com/2014/01/model-joan-gocha.html
 

Joan Gocha and Anette Stai
Elegance Paris
Amoureuses de le Soie
1982
Photos: Rico Puhlmann
   
   
my scans
 

Joan Gocha, Anette Stai and Valerie Robinson
Le Tours Facetieux  Luxueux des Pantalons
Elegance Paris
1982
Photos: Rico Puhlmann
   
 
my scans

Joan Gocha, Anette Stai, Eva Voorhees and Unknown
Precious Ivories
Elegance Paris
1982
Photos: Rico Puhlmann
   
   

Joan Gocha & Eva Voorhees
Tons Flamboyants Lesoir
Elegance Paris
1982
Photos: Rico Puhlmann
   
   

 

"PUNTO Y LABORES" - Vestidal Spain Early Spring 1984 #28 - also showing unknown

Thanks for the ID to RocketQueen.