Hey David,

Great question! Unfortunately, there isn't a way to pull this data through Followerwonk. I'm sorry about that!

I would recommend submitting a request for this data to our Feature Request forum, but we would only be able to track this information for accounts that are being tracked in Followerwonk already at the time one user starts following the other. So, if someone started following you before you were tracking your Twitter account in Followerwonk, we wouldn't be able to provide when they started following you.

Here's the forum we use to collect feature ideas:
http://seomoz.zendesk.com/forums/293194-seomoz-pro-feature-requests

I hope this helps. Please let me know if you have any other questions.

Chiaryn
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