Peter Creedon was a son of John Creedon and Nora Goggin.
Margaret Buckley was a daughter of Timothy Buckley and Elizabeth Dineen.

Peter Creedon (39), a stationary engineer of 13 North Pine St., Salem and Margaret Elizabeth Buckley (36) of 4 Trull St., Somerville married on 18 January 1914.

Child:

Nora Frances Creedon born @ Salem on 10 Mar 1915.  Nora married John Baptiste Giunta.  Nora died 18 Dec 2002 at Salem and the following is her obituary from The Boston Globe:

Nora F. Giunta
Of Salem, Dec. 18, age 87, retired Salem School Teacher. Wife of the late John B. Giunta of 2 Liberty Hill Ave., Salem. Daughter of the late Peter and Margaret (Buckley) Creedon. Mother and mother in law of Peter J. and his wife Cindy Giunta and Salem Fire Dept. Capt. Gerry and his wife Donna Giunta. Funeral Sat. at 8:15 A.M. from the Murphy Funeral Home, 85 Federal St., (cor of North St.) SALEM to be followed by a Funeral Mass at 9:00 A.M. in St. Thomas the Apostle Church on the Salem/Peabody line. Relatives and friends are respectfully invited to attend. Visiting hours Fri. from 4-8 P.M. Interment will be in St. Mary's Cemetery, Salem. Those who wish may make memorial donations to a charity of their choice. For more information call 978-744-0497 or visit www.MurphyFuneralHome.com

Census 1920: (Peter written as Patrick)
https://www.familysearch.org/ark:/61903/1:1:MXYT-71Z

Census 1930:
https://www.familysearch.org/ark:/61903/1:1:XQL1-R7M

Deaths:
Peter Creedon died in 1957 in Salem
Margaret Creedon died on 15 June 1963 in Salem  see Findagrave.

Burials:
Saint Mary's Cemetery, Salem, Essex County, Massachusetts