I can help just a little:
You used to call long distance using an operator (before 1+ dialing) and had a choice of person-to-person calls or station-to-station calls. Station calls meant you were calling a certain telephone and would be charged if you spoke to anyone who answered. Person calls meant you were only charged if you spoke to a particular person. Person calls were more expensive, but you weren't charged if the person you designated wasn't there.
All of her calls were designated as "station calls" not "person calls". I haven't been able to find precisely what that meant. I'm going to see if I can get more specifics from searching in a bit...
You used to call long distance using an operator (before 1+ dialing) and had a choice of person-to-person calls or station-to-station calls. Station calls meant you were calling a certain telephone and would be charged if you spoke to anyone who answered. Person calls meant you were only charged if you spoke to a particular person. Person calls were more expensive, but you weren't charged if the person you designated wasn't there.