Hi Megan!
We did know the names of the previous family and the initials don't seem to fit theirs.
I thought the 'plus' sign looked more like it could be a cross and that it might be one of those 'wwjd' things?
It was probably better off lost in the pile of papers...out of sight out of mind but now that it's risen to the top here I go again
"We're all just walking each other home." -Ram Dass
"Be a lamp, or a lifeboat, or a ladder."-Rumi
"It's all one song!" -Neil Young