Beaufoy’s Observatory (1818-27), Bushey Heath, established by Colonel Mark Beaufoy (1764-1827), with a 3-inch Cary transit, an altazimuth, and two clocks- The instruments were loaned by the Astronomical Society to Captain William Smyth (Howse 1986, 67).
Bayfordbury Observatory (?) University of Hertfordshire’s teaching observatory located in the relatively dark countryside of Bayfordbury, Hertfordshire, 6 miles from the main university campus in Hatfield. The first telescope was built in 1969, and since then has been used as a teaching observatory for undergraduate students, staff and student research as well as for public outreach activities (see website).
Parr’s The Hollies Observatory (1927-36), St. Albans, established by W. A. Parr at his home – re-erected from an earlier site in Hampstead. Furnished with a 4-inch Cooke refractor and an Evershed spectroscope – donated to St. Albans High School for girls (Obit., MNRAS, 59 (1936), 197; Obit., Obs, 97 (4), 279; Stroobant 1931).