Hilda Ericsson was born the only child of Carolina Margaretha Nilsson and Peter Simon Simonsson, a saddler appointed to the Royal Stables.

The couple also lost their son Lalle at a young age to tuberculosis, although Hilda made numerous trips with him over many years in the hope of curing him.

[1] In the same year as their wedding, Lars Magnus Ericsson and Carl Johan Andersson, one of his former colleagues, founded a mechanical workshop for repairing telephones, the L.M.

During the infancy of their children and her pregnancies, Hilda Ericsson was involved in testing new products and in developing their own telephones - a new invention at that time.

[4] On the contrary: after the opening of the large factory in Tulegatan and the production of the 20,000th telephone, all employees were portrayed to commemorate the event, but there was no mention of Hilda Ericsson and no photographs.