Deemas,
You'll be interested to learn that there has been a tradition of military service as well as political careers in the extended Younger / McEwan family.
The late George Younger, 4th Viscount Leckie was Defence Minister and Secretary of State for Scotland under Maggie Thatcher, a highly prominent Cabinet Minister. He represented Ayr.
Sir Kenneth Gilmour Younger (photo below) was a Junior Minister in the LABOUR (!!!) government, he was elected after World War II as MP for Grimsby.

His branch of the family are descended from James Younger, brother of George, First Viscount.
If memory serves Sir Kenneth's son is Chairman of the Electoral Reform Commission.
Try 'Google' for details.
Several Youngers have had distinguished Army careers.