Ferdinand Négadelle was born on October 9, 1866, into a family of five children: Charles Joseph (born in 1852), Louis Marie (born in 1858), Paul Joseph (born in 1859), Marie Louise (born in 1862), and Anne-Marie (born in 1865).
His father, Philippe Joseph, was an abandoned child. He took the first name requested by his mother on the day he was left at the Lorient hospice, and the surname "Négadelle," chosen by the deputy mayor of Lorient. Philippe Joseph became a renowned pastry chef and confectioner in Brest.
When his father died in 1869, Ferdinand was only three years old.
In 1870, his eldest brother Charles was a medical student. In 1872, Charles joined the Navy as an assistant surgeon. He served France as a doctor, notably in Cochinchina from 1887, and later in Annam in 1899, where he became the chief medical officer of the 10th Marine Infantry Regiment.
Ferdinand began studying pharmacy in 1884. Called up for military service in 1886, he was exempted (as his brother was already serving). He was called up and exempted again in 1887 and 1888 for the same reason. In 1889, although deemed fit for service, he was assigned to auxiliary duties due to his small stature (1.53 meters). From 1886 to 1895, he lived in Brittany.
In 1896, he moved to Saigon, where he established himself as a photographer. In 1897, he took over Aurélien Pestel’s photography studio at 10 Boulevard Charner in Saigon

Ferdinand Négadelle’s studio did more than just photography: it also specialized in phototypography, particularly for publishing, likely including postcards.
Soon after arriving in Cochinchina, he suffered from dysentery, a common affliction among French nationals unable to adapt their digestive systems to local food.
On April 11, 1901, he married Jeanne Rougelet, who was 15 years his junior. Some sources mention the birth of a daughter named Germaine in 1900, but no official record of this birth has been found in Saigon.
On November 17, 1901, at just 35 years old, Ferdinand passed away in Saigon. Like many French nationals, dysentery ultimately claimed his life.
To date, no postcards published by his photography studio and stamped "Négadelle" have been identified.

Ferdinand Négadelle’s Contemporaries in Indochina:

In Hanoi: Yu Chong, Moreau, Jumillard, Schneider
In Haiphong: Kit, Martin
In Saigon: Rodet, Antonio, Claude

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After Ferdinand’s death, his wife, Jeanne Rougelet, remained in Cochinchina and remarried in 1905.
His cousin, Jean-Louis Négadelle, born in 1893 and son of Charles Joseph, had a distinguished military career: he became a ship’s captain and was promoted to rear admiral in 1940. He died in 1944 during an American bombing raid on Brest, which was occupied by the German army at the time (1943-1944).