HOGAN

Arms: Gu. three lions pass. in pale or. each holding betw. the forepaws an esquire's helmet ppr.

Crest: A dexter arm in armour embowed, the hand grasping a sword all ppr.

Cosgrach, brother of Cineidh [kenneth or kenneda] who is No. 104 on the "O'Brien" pedigree, was the ancestor of O'h-Ogain, of Munster; anglicised O'Hogan, Hogan, Ogan, and Ougan.

104. Cosgrach: son of Lorcan: a quo Cosgrave, of Munster.
105. Aitheir: his son.
106. Ogan ("ogan:" Irish, a youth): his son; a quo O'h-Ogain.
107. Teige: his son.
108. Conor: his son.
109. Teige (2): his son.
110. Giolla Padraic: his son.
111. Aodh: his son.
112. Edmond: his son.
113. Edmond (2): his son.
114. Edmond (3): his son.
115. Diarmod: his son.
116. Conogher: his son; who died A.D. 1635.
117. Conogher (2), alias Giallgarbh [gilgariv], O'Hogan, of Cranagh, county Tipperary: his son; a quo Kilgarriff.  This Giallgarbh had a brother named Dermod; living in 1657.

REF:
'Irish Pedigrees' by O'Hart, Volume 1, Page 96, dated 1892, reprinted 1989.