John F. "Jack" O'Brien

Rest in Peace Mr. O'Brien, you were an absolute class act. You genuinely cared about your students and made a difference. One of the last "good guys". ......Joe H. Class of 1970

To Linda, Our deepest sympathy on the loss of your beloved, Jack. He certainly was a great guy to work with in our Bus. Dept at LHS and an even greater Headmaster. Although we haven't seen either one of you, you are thought of often.

Chris & Chris Demetriou, Lowell, MA & Marco Island FL

To the O'Brien Family,
My condolences on the loss of Jack.
I graduated from LHS in 1975 and I also volunteered at St. Michael's bingo with him. He was a role model and taught me the importance of giving back and helping others. RIP.

When I think of the third floor, Sophomore Floormasters' office on the canal side of LHS in the early 70's,it bring a chuckle and fond memories of Jack and LHS! I was a student when Jack student taught and a teacher at LHS when Jack was appointed Floormaster! Jack, May you Rest in Peace!

RIP Jack O'Brien, my floor master at LHS back in the 1970's as a 10th grader to most recently my UTL rep for the Lowell schools, always willing to listen and help, warm, smiling a real gentleman, you will be missed. To all his family and friends my sympathy, such a loss to our community but many great memories.

THANKS JACK

Jack was a kind, funny and dedicated man. I am so happy to have known him. I saw him while he was in Palm Manor while visiting my mother. Jack yelled to me after he heard my voice in the hall! He recognized my voice after 40 years...that's the kind of man he was. Thank you for everything, Jack. We'll never forget you. Donna M. Janas, class of 1975

To the O'Brien family. Mr. O'Brien was the best. Everybody loved him.
Cathy Gagniere class of 1972

so sorry for your loss jack was a wonderful man he will be missed