[1] Beckman began his career as a underlöjtnant in the Swedish Navy in 1876 and was promoted to lieutenant in 1881 and captain in 1888.

In 1907, Beckman was promoted to major general and became commander of the Coastal Artillery.

[3] Beckman was also an honorary member of the Royal Swedish Society of Naval Sciences.

[5] It was after a banquet at the Royal Palace, when Beckman and his colleagues made a short visit to the Grand Hôtel.

Ten minutes after midnight on the 27 June he walked, dressed in parade uniform, through Kungsträdgården.