The TNA marriage register entry is on Ancestry. According to that, Frederick Albert Owen was a 'printer's cutter' when the couple got married on 30 Apr 1916.
There's also some Army records on Ancestry. Frederick signed up with the Middlesex Regiment on 15 Aug 1914, for three years, so if he was a printer's cutter when he married in 1916, then something must have cut short his army career ?