Samantha Chase
Samantha Chase was a pseudonym used by  Eileen Buckholtz and Ruth Glick. The books they wrote under this pseudonym were:
Postmark (1988) 
Needlepoint (1989) 

Samantha Chase also wrote the Shaughnessy Brothers series of novels. References

Collective pseudonyms
American women writers
Pseudonymous women writers
20th-century pseudonymous writers