Neville's evening classes run nightly at the Sir Francis Drake Hotel through the end of July 1959
The same notice states that classes will be given in the Sir Francis Drake Hotel, Sutter and Powell Streets, beginning July 20, with nightly sessions Monday through Friday running through July 31.
Date (happened)
20 July 1959
conclusion
Why
dc1-agreement-20261004, pm-actor-551 (PM 8702)
Reasoning
All 2 claims agree on 1959-07-20: media:777; media:777.
20 July 1959
stated ยท preferred
Reasoning
The clipping states the classes begin July 20, within the same article that names 1959 as the lecture series year.
between 20 July 1959 and 31 July 1959
bound
Reasoning
Media 777 explicitly places the classes in the 1959 series, says they begin July 20, and states that the nightly Monday-through-Friday sessions run through July 31, directly establishing both endpoints.