Additional Cosgrave family information will be added here as it becomes available.

  • Cosgrave Family of Malone, Antrim, Ireland. (Updated December 2023). Daniel, my earliest identified Cosgrave ancestor, leased land in Malone, Antrim, Ireland from the Marquis of Donegall in the early 1700s. This land stayed in the family until the death of Thomas Cosgrave in 1854, at which time it was sold, and Thomas’ only surviving son, James Steele Cosgrave, emigrated from Ireland to New Zealand with his family.
  • My Cosgrave Y-DNA Journey. This documents the exploration to date of my Cosgrave Y-DNA, from the first test to finding a new related Cosgrave / Cosgrove family line.