From History of Allegheny County, Pennsylvania:
(James Porter) His wife, Helen (Grant), a native of Aberdeenshire, Scotland, was possessed of great force of character, having those rare qualities of head and heart that make influence for good far reaching; and her son, Capt. J. W. Porter, attributes much of his success in business to the teachings and precept of this noble woman. She died Feb. 24, 1888, aged eighty-eight years. Of her nine children, six reached maturity: Mrs. Ann F. Dickson, Capt. J. W. Porter, Capt. Robert Porter, Mrs. Margaret J. McClelland, David R. and Mary E. Porter.
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