Stepson/Son in Law?

[Sue at the seaside]

In the 1860s were these terms interchangeable?

I've found a likely family, but the man I think should be a Son in law is listed as a Stepson!:confused:

[Anstey Nomad]

In my experience yes they are Sue, although I have mostly seen a stepson listed as a son-in-law, if that makes sense.

AN

[Sue at the seaside]

I may be looking at this all wrong, perhaps he his a stepson. Off to get my head round it! thanks AN

[Merry]

I agree with AN :)

[Sue at the seaside]

Having reviewed this, I don't think he could be SIL, I may be coming back to this and asking for help.