Her family is having a celebration of life at Haley Toyota Field, home of the Salem Red Sox, on Saturday, Oct. 5, from 5:30 to 8 p.m.
They ask attendees to bring a Barbie doll in honor of Rowan to donate to Carilion Children's Hospital and the Roanoke Ronald McDonald House.
The 4-year-old battled a rare, aggressive form of leukemia she had been fighting since October and died on Sept. 15.
"Cancer didn't win, you did my princess warrior, you did!" Rowan's family posted on their GoFundMe page.
She fought hard against cancer and inspired others to fight for her, creating a far-reaching #RowanStrong community of love and support.
The family announced that the celebration on Oct. 5 will begin with a memorial community run, a #RunForRowan.
In a post to the public Facebook group, "Rowan Strong! #rowfightwin," Rowan's mother posted, "Rowan was a beautiful light and we want to continue to share her light and loving spirit."