Joan grew up in Great Neck, New York, the daughter of Sophie and Charles Oestreich, sister of David Arthur Oestreich and the late Richard Oestreich.
A graduate of Northampton School for Girls, she attended Vassar College and graduated from Columbia University’s School of General Studies.
Joan worked for many years in finance. A resident of Manhattan, Joan also enjoyed her estate in Millbrook, New York.
A patron of the arts, Joan collected both antiques and early American art. Joan was a member of the Harmonie Club in New York City and the Mashomack Preserve Club in Pine Plains, New York.
She is survived by her devoted brother, David, his wife Brenda and their children and grandchildren. She was married to the late David Kend and is also survived by step-sons Peter Kend and Robert Kend and their families. She was a loyal friend to many.