Dylann Roof has a sister named Amber, 27. Amber Roof did not immediately respond to ABC News' calls and a message sent via the GoFundMe page for additional comment.
According to the page, which was taken down this afternoon, the administrator said Amber Roof was supposed to marry fiance Michael Tyo June 24, but they canceled four days before the wedding after Dylann Roof allegedly shot the parishioners attending a Bible study at Emanuel AME Church.
Roof, 21, is being held without bail in the Charleston County jail and faces nine counts of murder.
"Our wedding day was suppose to be the most important and special day of our lives," the page administrator wrote on GoFundMe. "Our day was the exact opposite. Our wedding day was full of sorrow, pain, and shame, tainted by the actions of one man."
The campaign organizer added that they canceled their wedding "to protect our family and mourn the lives of those lost" but that she started the GoFundMe account for a "create new memories and a new start with our family."
The administrator raised $1,604 of their total goal of $5,000 as of 12:30 p.m. on Thursday, according to the GoFundMe page, which was first set up last Saturday.
The administrator posted an update Wednesday, saying, "We are so grateful for all of your contributions. We love you all so much. Thank you for helping us reach our goal of our dream honeymoon!"
Campaign organizers can still access funds that have already been committed even after they remove their page from the site, according to GoFundMe.