Jillian Kesner-Graver, 58, who played Fonzie's girlfriend Lorraine on

Happy Days

and with her late husband, director-cinematographer Gary Graver, worked to preserve the legacy of Hollywood legend Orson Welles, died Dec. 5.

Mrs. Kesner-Graver, who lived in Rancho Mirage, Calif., had leukemia, but died at an Irvine hospital of a staph infection, family friend Joseph McBride said.

Her husband, who died last year, worked on many movies with Welles. Most recently, Mrs. Kesner-Graver had been helping piece together footage her husband shot in the 1970s for Welles' unfinished feature,

The Other Side of the Wind

. The couple had hoped to complete and eventually release it.

In addition to her

Happy Days

role, Mrs. Kesner-Graver appeared in a number of low-budget films and on TV in

The Rockford Files

,

Mork & Mindy

,

Three's Company

and other shows.