The excellent Whereabouts Still Unknown blog wrote up five MP cases for December: John Victor Dial, Michelle Elaine Meiser [not on Charley yet], Anna Marie Anderson, Katrina Dawn Sweaney and Freda Winget [her I’d never heard of]. I recommend you check ’em out.
My apologies: yesterday I was detained in a place without internet access. This week’s MP is Melissa Ann Page, last seen at a bar in Illinois in 1990. Inevitably, foul play is suspected in her disappearance.