Sean Brennan

Funeral service for Sean Brennan will be held at 2 p.m., Tuesday, Oct. 2, 2018, at Gillette Memorial Chapel with Pastor Gordon Harper officiating. Visitation will be held from 4 to 7 p.m., Monday, Oct. 1, 2018, at Gillette Memorial Chapel.

Sean Garrette Brennan, 20, passed away at his home from complications of diabetes on Thursday, Sept. 27, 2018.

Sean was born on Aug. 13, 1998, to Robert Hannah and Melissa Brennan in Gillette, Wyoming. Sean was diagnosed with Type 1 diabetes at the tender age of 17 months. It was his life long struggle. He grew up in Gillette, attending Hillcrest and Rozet Elementary Schools, Sage Valley Junior High, and Campbell County High School.

He loved being with his family and friends. He also enjoyed, playing video games, working out with his Dad, reading, four wheeling, camping, spending time on the lake, and riding his bike around town. Sean is survived by his parents, both of Gillette; his sisters, Anaiya Brennan of Billings, Montana; and Emily Price of Gillette; his brothers, Shelby Singleton; Alan Poole; Anthony Carlisle; and Hezekiah Philips, all of Gillette; grandparents, Laura and Richard Hanes; Lucy Wiggins; and Matthew Brennan Sr; along with numerous aunts, uncles, and cousins. He is preceded in death by his paternal grandfather, Alan Hannah; step-father, Kenneth Carlisle; and all of his great-grandparents. Memorials and condolences may be sent in care of Walker Funeral Home, 410 Medical Arts Court, Gillette, WY, 82716. Condolences may also be expressed at

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