Which preposition to use with panton

to Occurrences 2%

"Poor Milly" was very present to Dr. Panton to-night.

at Occurrences 1%

"I wonder what exactly happened?" exclaimed Panton at last.

for Occurrences 1%

" Varick's tone was not very pleasant, and Panton for a moment regretted he had come; but as he had passed through the hall he had seen the old lady nodding over a book, and he was well aware that had he stayed indoors, it would have been to work up in his own room.

Which preposition to use with  panton