Photograph of Widemann and family, 1886 (left), and the Widemanns' Residence, Honolulu, 1900 (right).
Mary Kaumana Kealaimoku Widemann and her husband, H.A. Widemann. Kaumana is holding their daughter, Emma Kalanikaulelei'aiwinui a mamao Widemann & H.A. is holding their daughter, Martha Pilahiu'ilani Hakaukalalapuakea Kiha a Ki'ilani Widemann Berger.
Hermann Adam Widemann (December 24, 1822 – February 7, 1899) was a German-born American businessman, judge and politician.