I would like know if I should use of or from to refer to a university a person belongs to, such as in the following sentence:
We thank Dr. John and Dr. Tom of / from the University of California for their comments and discussion.
I would like know if I should use of or from to refer to a university a person belongs to, such as in the following sentence:
We thank Dr. John and Dr. Tom of / from the University of California for their comments and discussion.
Either is perfectly valid, though they carry slightly different connotations.
A person from some place or entity just comes from there, is based there, belongs to it or whatever. A person of some entity is generally acting in some sort of official capacity. Representatives on some federal body, sportspeople competing under the colour of their country, and so on. Most of the time that you could reasonably say "of", you could also say "from", but not necessarily vice versa. And, of course, sometimes "of" is appropriate but "from" isn't, such as when talking about members of a sports team.
This, however, is just based on my experience of a life lived (so far) in the English language. Not everyone will have the same understanding, and I am quite sure there are times that "of" is used where I would say "from" is more appropriate.