Isumbras Took (I) (fl. TA 2340) was a Hobbit of the Shire.
As Isumbras I, the 13th Thain of the Shire (TA 2340–?), he was also the first of the Took line.
- Foster, Robert. The Complete Guide to Middle-earth.
- MERP:Lords of Middle-earth Vol III: Hobbits, Dwarves, Ents, Orcs & Trolls