What was the age of majority in Washington state in 1945?
It is unclear what does this mean "age of majority".– AlexOct 21, 2017 at 17:29
@Alex Washington state made the definition clear in their legislation (see my answer below).– sempaiscubaOct 25, 2017 at 18:13
It seems that the legal "age of majority" in Washington state was 21 from 1854 until 1971, when it was amended by House Bill No. 309 and became 18.
There are different definitions of the term "age of majority". In this case, the "age of majority" is defined in the bill as follows:
... all persons shall be deemed and taken to be of full age for all purposes
So, to answer your question, the age of majority in Washington state in 1945 was 21.