120112 AARP Tax Class 1 - NGJames Neiss/staff photographerNiagara Falls, NY - AARP Tax-Aide Program local coordinator Ken Greulich trains volunteers in preparation for this years free tax assistance at local senior centers and libraries starting Feb. 1. The service is free and appointments can be made by calling the individual locations that include: The John Duke Senior Center on Monday, Tuesday, Wednesday and Friday; the Lewiston Library on Tuesdays; the Lewiston Senior Center on Fridays; the Wilson Free Library on Monday’s and the Grand Island Senior Center on Monday’s, said Greulich.