I occasionally come across use of "ask of" where I would expect "ask about"
The participant discussed that some adolescents may not initiate a conversation about a personal issue because of the anxiety they experience. When asked of ways in which a provider can improve openness in these situations, it was suggested to start vague, by asking if the patient has anything they would like to discuss. (Caring for the Vulnerable - Perspectives; eds Chesney & Anderson)
This is an interesting contrast to the military expert who, when asked of the possibility of disaster answered, "virtually nil". (A Survey of Chemical and Biological Warfare; John Cookson & Judith Nottingham; via Google Books)
Two common usages of "to ask of" are
- to ask a question of someone, meaning to put a question to someone and
- to request or demand something from someone/something
(see Farlex Dictionary of Idioms / McGraw-Hill Dictionary of American Idioms ... and OALD, via ELU.SE, respectively), neither of which seems to fit in the context at hand.
Is this an established usage? Or is it considered dated? Is it influenced by other phrasal verbs with "of"?