A photo of Jeff Monreal, owner and operator of Jeff Monreal Funeral Homes posing in a black suit with no background

Painesville Location

1000 Mentor Avenue Painesville, Ohio 44077

Willoughby Location

38001 Euclid Avenue Willoughby, Ohio 44094

Mentor Location

6330 Center Street Mentor, Ohio 44060


John J. Gruenberg

3/28/1964 - 9/16/2023

John J. Gruenberg, age 59 of Mentor, passed away September 16th, 2023. He was born March 28th, 1964 to the late Ray Gruenberg and Patricia Nelson.

John was self employed and owner of City Marine Inc. in Eastlake.

John had the greatest sense of humor, was a hard worker and a straight shooter. John’s gregarious nature, intense curiosity and ability to jump in and help so many in the neighborhood and community will be missed by all. He was a friend of Bill W.

John was the loving husband of 34 years to Amy K. Gruenberg (nee Caldwell); dearest brother of  Mark (Amy) Gruenberg, Andy (Rachel) Gruenberg and the late Mary Ann Riddle; brother in law of Karen Caldwell (Eric Snead), and Becky (Steve) Belechak; uncle and great uncle of many.

The Gruenberg family will receive friends from 1:00 – 5:00 PM Saturday, November 11th, 2023 and a Celebration of John’s Life will be held at 4:30 PM at Jeff Monreal Funeral Home, 1000 Mentor Ave., Painesville OH 44077.

Donations can be made in John’s name to The Lake Humane Society, www.lakehumanesociety.salsalabs.org/donate/index.html


November 11, 2023


4:30 PM


Jeff Monreal Funeral Home

1000 Mentor Ave., Painesville OH 44077