Curt that's a great spot you found
I would definitely try the woods and surrounding areas, as from the range of dates you found and the good condition of that LC, there's bound to be plenty more older coins and jewelery there (I'm sure there's multiple seateds there).
Curt I would drop the disc to 7 and dig everything that's not iron, I'll bet there's an old gold ring hiding somewhere there. I've seen indian heads ID as low as 45 on my LTD, unless there's a lot of trash there, I'd dig everything non iron. I'd also hit it again with the 5" coil, you'll be surprised when you pull out several keepers that were masked the 11" coil passed over (trust me on this). Go slow, sometimes I crawl along and get a hint of a high tone, then slowly do the wiggle over it and manage to bring up a semi-repeatable tone and many times have dug a keeper, so dig those iffy signals, their probably coins on edge or partially masked keepers.
I have a spot that I've been hitting every so often since last summer, and have pulled out about four dozen wheatbacks (almost all in the teens, including some semi-key dates like two 1911S's), four indian heads, five barber dimes, six mercs, one standing liberty quarter, one silver rosie, a love token, V nickels, buffalo nickels, silver war nickels, several pieces of Victorian jewelery and a few things I can't remember. Every time I go back, I use a different coil, or try something different and amazingly find more stuff. This is all from an area that's about 20' x 60', so it's pretty small and I know there's more there. I'm to the point where I plan to hunt it in all metal mode and dig everything, including iron to see if I can unmask some hidden coins.
Once you find a good spot, it's hard not to keep hitting it, there's always more there