A pretty good premise and plot here. Some interesting twists and amusing revelations, I think, all the way to (one assumes) the genesis of Abe's name. On the other hand, I wasn't crazy about some of the mechanics of it (the typical way the characters are put in as past people, but this time meant to be their ancestors), or the similar parts involving Milhouse, or a few other bad historical jokes, which sort of brings it down. Anyway...
Short list:
Previous episode stuff BABF17, KABF20: Bart helping with dynamiting 4F24: Lisa and Simpson lineage/extended family {Small collection of stuff in attic: 1F11: I didn't do it shirt 1F13: Homer's space suit DABF02: HJS rocket 7F22: Olmec head (out of the basement?) 9F07: Mr Plow jacket }
Goof/discussion question/nitpicking -Lisa can't believe she's descended from slaveowners. Should that be a surprise? I guess their heritage is variable enough that they can have been in America in colonial times one week and much more recent immigrants the next.
Also Marge refers to a sampler she's made (QUIT WHILE YOU'RE AHEA). She's made some similar things before but I can't seem to find where one is. I know she did the Lenny-based needlepoint in BABF02, and a "PLEASE PICK UP YOUR UNDERPANTS" at some point (but when?). Any others?
And I caught a glimpse of a commercial for this episode that seemed to be in a scope-like widescreen (about 2.35:1), but only a glimpse. It may have been an oddly formatted (letterboxed and stretched-out) clip, or a deliberate cropping for the ad - did anyone else see that who can provide more info?