Logan died on August 5, days after his parents Christine Swidorsky and Sean Stevenson got married.
Logan was born with a rare genetic disorder, Fanconi anaemia that often leads to cancer. During his life, he endured leukaemia, a stem cell transplant and the loss of a kidney.
"His life has had an impact over the whole world," Rev. Jan Zotter, pastor of Allison Park Church said during a service attended by 75 family members and friends in the Mason-Gelder Funeral Home in Jeannette in Pennsylvania yesterday.
"I bet he's playing baseball. I bet he's seeing the horses there," The Pittsburgh Tribune-Review quoted Zotter as saying.
Also Read
Christine and Sean had brought Logan home on July 26 after doctors at Children's Hospital of Pittsburgh told them he had two to three weeks to live. The couple then moved up the date of their wedding from 2014 so that Logan could be part of it.
Other mourners shared their feelings in notes placed with pictures of Logan on poster boards with such headings as "Sweet Baby," "We Miss You Already" and "The Best Man."
"Even though it was heartbreaking to let you go, Heaven is very lucky to have you.
"Don't worry about us. We will find a way to go on," the note adds. "You will always be in grandma's heart forever, and I will never forget my little Ba Ba."
"You are a tiny angel that has blessed us every day," the report quoted an uncle of Logan as saying in another note.
The story on Logan serving as the best man of his parents' wedding was picked up across the world.