Henry Maurice Platnauer FGS (1857 – 1 October 1939) was a British mineralogist and Museum Curator.
[2][3] Through this role he subsequently served as a Vice-President of the Yorkshire Philosophical Society from 1905 and was elected as an honorary member of the YPS in 1935.
During the First World War he served with the rank of Captain and was primarily involved with training units.
He and his wife left York in 1912 to live in Bournemouth, where he stayed until her death in 1920, after which he returned to London.
[5] Platnauer served as the joint secretary of the Association from 1889 to 1897 and co-edited the annual reports in 1890 to 1896.