Catherine Stauff O'Brien of Sussex passed away peacefully on February 1st 2026 at the age of 92. She is the beloved wife of the Late John Francis O'Brien Sr.

Funeral services will be held Friday February 6th 2026 at St. Teresa of Calcutta Parish, N314 N7462 State Road 83, Hartland WI.  (North Lake). A visitation for Catherine will begin at 11:00 am with a Mass of Christian Burial to follow at 12:00. A private family burial will be held.

Please check back to the Schmidt & Bartelt funeral home website for a complete obituary.