Go back to directory. Add to Address Book. Mrs. Sharon Serfling Literacy Coach Elementary School – Gibbon, MN Home 323 E. 11th St. Sibley Gibbon MN 55335 USAhome Work Phone: (507) 207-2211work Work Email: sharon.serfling@gfwschools.orgINTERNET Categories: Elementary School Updated 2 months ago. Share on