August 2, 1945 Blue Book Modeling Agency 5’ 6”, 120lbs 36-24-34 “Size 12”At her death in 1962, the coroner's report listed her body's weight at 117. In between, her body fluctuated, but she stayed at an hourglass figure throughout http://themarilynmonroecollection.com/marilyn-monroe-true-size/ Size 12 then is NOT today's size 12.
Those measurements indicate that Marilyn was a slender woman. Not tiny, but slim.