Lucas M. Olsen, 39, Marshfield, died unexpectedly on Thursday, July 14, 2016 at Mercy Medical Center in Oshkosh. Funeral services will be held at 1:00 pm on Thursday, July 21 at Rembs Funeral Home, Marshfield, where the visitation will be from 11:00 am until service time. Pastor Nathan Byes will officiate. Following the service, a gathering and celebration of life will be at Bey's Bar in Marshfield. Lucas was born on August 10, 1976 in Marshfield, to Roger and Ruth (Aubert) Olsen. He married Jessica A. Williams on September 25, 1999. He had been employed at Lynn Dairy and also at Bey's Bar. Lucas is survived by his wife, Jessica and a son, Zachary. He is also survived by his mother, Ruth Olsen and a brother, Seth Olsen. He was preceded in death by his father. Condolences may be sent online to www.rembsfh.com