@inbook{BoslerBiddle+2016+289+290,
url = {https://doi.org/10.9783/9781512814477-188},
title = {Helen Martin (1868–1939)},
booktitle = {Notable Women of Pennsylvania},
author = {Gertrude Bosler Biddle},
editor = {Gertrude Bosler Biddle and Sarah Dickinson Lowrie},
publisher = {University of Pennsylvania Press},
address = {Philadelphia},
pages = {289--290},
doi = {doi:10.9783/9781512814477-188},
isbn = {9781512814477},
year = {2016},
lastchecked = {2026-04-29}
}