Esther Davis     Blanchard     ACTON -- Esther Davis Blanchard, devoted wife of Parker Blanchard for over 62 years, died Oct. 16, 2006, after a long battle with Alzheimer's and emphysema.     A resident of Acton, and formerly of Winchester, Mass., Esther was the beloved mother of her four children, Susan, Davis, Barry, and Peter; and a loving grandmother to her seven grandchildren; and four great-grandchildren.      Her family and many friends will miss her sweet and gentle nature, her optimistic outlook, and her easy ability to foster love and affection.     A period of visitation will be held this Friday, Oct. 20, 2006, from 11 a.m. to 1 p.m., followed by a service at 1 p.m., at the Carll-Heald & Black Funeral Home, 580 Main St. Springvale. Services have been arranged through the Carll-Heald & Black Funeral Home of Springvale. To leave messages of condolence please visit www.blackfuneralhomes.com.     In lieu of flowers donations     can be made to:    The Alzheimer's Association     163 Lancaster St. Suite 160B    Portland, Maine 04101    or to:    The Emphysema Foundation    Suite D     239 NE U.S. HWY 69    Clay Como, Missouri 64119