Which preposition to use with griggs

in Occurrences 3%

' 'Was Mr. Griggs in the house?'

with Occurrences 3%

Margaret asked, turning to Griggs with a smile.

at Occurrences 1%

I met old Griggs at your door, and as we walked away he told me that Mr. Feist had fallen down in a fit at a club, the night before, and had been sent home in a cab to the Carlton.

Which preposition to use with  griggs