When Groveland’s Susan Curry, 59, takes part in the 25th Boston Marathon Jimmy Fund Walk on Sunday, it will be her 25th year participating in the fund-raiser, which covers the same Hopkinton-to-Copley Square course as the Boston Marathon. “I’ve done every one,” said Curry. She lost her mother and grandmother to cancer, and both her sister and husband are cancer survivors. Daughter-in-law Sarah Curry, who has walked with her in recent years, lost her father to cancer. Their team, For Pete’s Sake, is named for Sarah’s dad, the late Peter Alexson. “You can’t count the number of friends that you lose,” said Curry. “It’s a horrible disease that wreaks havoc on families.” Officials said Curry has raised more than $25,000 over her first 24 years, and this year her goal is $3,000. “I feel very good” to have raised that amount, she said. “I wish I could do a lot more.” For more information or to donate to Curry’s campaign, go to www.JimmyFundWalk.org.