Re: Well if the US ships want the Chinese to keep out of the way
At that point in time it would almost always have been a secretary doing that kind of job, and secretaries were almost invariably female. It's not the OP's fault if historical real life proves to be inconveniently insensitive to gender issues..
Plus I note that, as reported by the OP, the techie describing the incident was also female - both which you fail to note and which rather destroys the picture of gender stereotyping that you'd clearly like to paint.