findmypast shows, in the 1891 census that Violet was born at Islington in 1867. It shows that her husband, FRederick, was a compositor, born at Barnet, Hertfordshire, in 1863.
FreeBMD records that Frederick's birth was registered in the June quarter of 1863, at Barnet, in volume 3A, page 104.
I hope this helps you.