Searching for Photograph recognition 1913-1914

[Escaliba1234]

This photograph shows my father, Siegfried Marius Thomsen, with his - I believe - Great Grandmother, in 1913 or 1914.
It was taken by Ch. Larsen, photographers in Taastrup.
Can anyone tell me anything about it, please?
Siegfried was the son of Stephan Marius Thomsen and Marie Thomsen (nee Andersen).
Many thanks for any input.

[Michelle Larsen]

The photographer:   https://www.fotohistorie.com/larsen-christopher-taastrup-mv.html

[Inge Hedal]

Sigfred's mother was Marie, née Andersen. Her parents were Mads Andersen and Maren Sofie, née Pedersen in Ishøj. Taastrup was situated in Ishøj parish.
Mads Andersen's parents were Anders Jensen and Sidse, née Jørgensdatter. Sidse lived with Marie´s parents after her husband's death. She died in Ishøj in November 1915, so she could very well be the old woman with your father, born in November 1913.
I cannot find Maren Sofie's parents after her birth. She did not live with them when she was 13.

Inge Hedal