Regarding Kenyon’s president in 1963 indicating that 750 students was the ideal size for Kenyon…
Kenyon now has about 1,615 students.
Here are the results of a search for four year colleges with under 1,000 students with the following majors: biology, English, history, math, chemistry, economics:
https://nces.ed.gov/collegenavigator/?s=all&p=26.0101+23.0101+54.0101+27.0101+40.0501+45.0601&pn=1&l=93&ct=1+2&ic=1&ex=1000&hs=1
Looks like about 40 colleges, not all of which may really be “general liberal arts colleges” despite offering that selection of majors covering various areas of liberal arts.