This is topic Brain lapse in forum Open Discussions About Writing at Hatrack River Writers Workshop.
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Posted by Christine (Member # 1646) on :
I was typoing away and all of a sudden I questioned the correctness of something..."Helen and Kathy's reactions."
or
"Helen's and Kathy's reaction."
The reactions belong to both Helen and Kathy.
Posted by Tracy (Member # 2015) on :
Second one.
Posted by UnheardOf (Member # 2022) on :
From Harbrace College Handbook:
quote:
To indicate individual ownership, add the apostrohe and s to each name.
Al's and Sue's cars [note that cars is plural]To indicate joint ownership, add the apostrophe and s only to the last name or to each name.
Al and Sue's car OR Al's and Sue's car
Posted by Christine (Member # 1646) on :
Thanks, simple enough. Like I said in the title, just a brain lapse. 
Posted by Jules (Member # 1658) on :
quote:
I was typoing away
Posted by Christine (Member # 1646) on :
Indeed, I was.