Thanks Willsy.
Yes Lavinia was his widow, she did die in 1957 aged 90. My mum refers to her as granny.
Thomas Edwin Horton (called Edwin) had a son, called Edwin. (He was born Edwin Dann as Lavinia and Thos Edwin didn't get married until the boy was 4).
By the time Uncle Ted died (boy Edwin) the family were living at Audley End, Leicester. Uncle Ted's death was tragic on that he was giving his young nephew, Brian, a lift on his pedal bike and, it's believed, the nephew's sandal got stuck in the spokes causing them both to fall from the bike.
A shoeless little boy ran home and uncle Ted was found on the pavement with a head injury, it was a fractured skull. He died from his injuries.
I have now bought Thomas Edwins death certificate.
Thanks for everyone's help.