Another addition to our "Ark Garden" is Tennis Ball Lettuce.
A favorite of Jefferson at Monticello. Jefferson noted that "it does not require so much care and attention" as other types.
It became a favorite in the late 1800s and is the predecessor to Boston types. By 1904 116 seed houses were offering it. Today there are just a couple speciality suppliers.
I think I will skip a traditional preparation (mentioned in Heirloom Vegetable Gardening by William Woys Weaver) which is to pickle it in a salt brine...