Dáibhídh Ó Duibhgeannáin (fl. 1651–1696) Dáibhídh mac Matthew Glas Ó Duibhgeannáin, or Dáibhídh Bacach ("lame David") as he sometimes called himself, was an active scribe, compiler and poet between the years 1651 and 1696. In the earliest of his known works, Royal Irish Academy Ms. 24.P.9., he writes on page 238: "sguirim go ttrasada ar Loch Mesg dam a ttigh Thaidgh Oig Ui Fhlaibhertaigh 1 die Aprilis 1651, Dauid Duigenan qui scripsit/I stop now, and I on Loch Mask in the house of Tadhg Og O Flaherty, April 1st, 1651, David Duigenan who wrote this." A later entry specifies the place as Oileán Ruadh, or Red Island.