On October 24, 2025, longtime resident of Mt. Ephraim, NJ.  He was 69 years old.

Beloved husband of 47 years to Karen Callahan.  Dear father of Joseph III (Stephanie), Jennifer (Tom) Weick and Daniel Callahan.  Loving Pop of Julia (Jason), JoJo, Tommy and Blaze.  He is also lovingly survived by his sisters, Helen Marie (Bob) Halverson and Jane Callahan; brother, Jim Callahan; nephew, Ron (Nicole) Homa and niece, Erin (Ryan) Barnes.

"Pop Joe" was active in the Mt. Ephraim community, where he especially enjoyed helping coach youth athletics.  He was also a retired member of Local #14 Philadelphia Asbestos Workers.

Relatives and friends are invited to attend his viewing on Wednesday, October 29,  6 PM to 8 PM and Thursday, October 30, 9:30 AM to 10:30 AM at the FOSTER-WARNE FUNERAL HOME, 250 S. White Horse Pike, Audubon, NJ.  Mass of Christian Burial Thursday 11 AM at St. Rose of Lima Church, 4th Ave. & Kings Hwy., Haddon Heights, NJ.  Interment private.

In lieu of flowers, contributions may be made in memory of Joseph P Callahan Jr. to support the Mesothelioma Translational Center of Excellence Gift Fund at the Abramson Cancer Center. Online donations may be made by visiting www.pennmedicine.org/giving.

To make a gift by check, please make payable to "Trustees of the University of Pennsylvania." Please indicate "In Memory Of Joseph P Callahan Jr." on the check memo line or on a separate note included in the envelope.

Checks can be mailed to: Penn Medicine Development, ATTN: Stephanie Galetta, 3535 Market Street, Suite 750 Philadelphia, PA, 19104.