This was founded in 1876 by a Hampshire Vicar's wife Mary Sumner and launched as a national organisation.
The Mothers' Union is an international Christian charity that supports families worldwide. Members can be mothers, parents, men, widows, single and grandparents. Its aim is to support marriages and families through times of adversities.
There is a yearly fee of £29 at the moment.
You can find more information about Mother's Union by visiting the national website: https://www.mothersunion.org.