Here's a fascinating historical artifact -- a life insurance policy Carole Lombard set up in December 1934, with her mother, Elizabeth Peters, as the beneficiary:
From it, we learn Lombard lived on Hollywood Boulevard at the time...
...while her mother now resided in Beverly Hills, a major step up from the relatively modest neighborhood she'd been living in only four years earlier (http://community.livejournal.com/carole_and_co/81610.html). Judging from a stamp, we also note the policy was modified in 1935.
As it turned out, of course, mother and daughter both died in the Jan. 16, 1942 plane crash, so Clark Gable became the beneficiary. The policy was canceled in 1961, not long after his death in November 1960.