[1] Fischer was born in Austria, and received a medical degree from the Martin Luther University Halle-Wittenberg in Germany.
[2] He was awarded the Great Gold Medal of Science and Art by the Emperor of Austria for services to natural history and medicine.
[5] His daughter married Commander Burges Watson of the Royal Navy, after which she lived in China where her husband had been permanently posted.
[2] Fischer died in 1893 in Chicago where he went to attend a medical congress and exposition and present a paper on the 'Progress of Homeopathy in New South Wales.
[8] The couples' eldest son, Fischer Watson, born in 1884, later became a Royal Navy officer who served as Commander-in-Chief of the New Zealand Division.