Hi Julie, Ann remarried 1860 to William Duckett, He was part of the Royal Artillery, arriving in 1856. I've just got their marriage certificate transcription. What is interesting is that in her marriage to Michael Blakeney, she gave her name as Brennan, however in the marriage to William Duckett her father is listed as John Buckley. Her death registration (July 1902) gives his forenames as John Peter. The second marriage certificate also names her mother as Catherine Hogan.
The name could be a transcription error, when the church records were transcribed in 1906. However it may be worthwhile following up on the Buckley.
Similarly, on the marriage transcription, William's mother is named as Hannah Reeves. Again that is not so, as his mother was Mary Ann Duckett nee Bull. Mary Ann died in 1841 and William and his older brother were placed in the Banbury Workhouse. William would have been about 4.
I've recorded what I can of the Blakeney descendents hoping to make contact with someone from that line to clarify things. Bruce