The weird thing is that two people keep getting suggested as friends. One (skipping last name to avoid unwanted searches) is Katie, a national-class runner who lives in this area and works at a local running store; we have 7 mutual friends:
The other is Joyce, another good local runner:
Then it came to me - somehow Facebook knows my weakness for redheads! Here's the author of the last cookbook I bought:
Wonder if she's on Facebook...