For as long as we can remember, new associate members (or pledges, back in the day) were assigned a Big Brother.

This tree was last updated April 27, 2025. As of this update:
– We have 490 Little Brother / Big Brother pairs.
– We have 176 Little Brother / Big Brother pairs that have been confirmed by the Little Brother.
– All current undergraduate brothers connect to the “Biggest Brother”, Frederick Keady ’66, via somewhere between 32 and 40 generations.

How to read this Tree:
– Brothers in Blue have no reported Little Brother.
– Brothers in Grey have no reported Big Brother.
– Brothers in Green have a reported Big Brother and at least one reported Little Brother.
– The year is the reported graduation year for the brother in question.

If you aren’t in this tree, we don’t have your Big Brother or Little Brother(s) listed in our database. Email secretary AT ohioalphabeta DOT org to add information for yourself or another brother, or to update anything incorrect information.

This PDF divides each tree into its own page.

This PDF has every tree on one big page.