Ford 2000 oil leak

I have a '63 Ford 2000. I think the head gasket blew and had a tractor place fix it. Ran okay then noticed another leak ...looked like at valve cover..I replaced...still leaking...not sure if at head gasket or now at new spot at exhaust manifold...the tractor mechanic said he only replaced the head gasket....is it possible that once the head gasket was replaced other weaker gaskets could show leaks???.......I am no mechanic but cannot afford to keep running this back to the shop........expensive!!!

"is it possible that once the head gasket was replaced other weaker gaskets could show leaks???...."

No, it doesn't really work that way. But, in order to replace the head gasket, the valve cover would have
to have been removed, and most likely the manifolds were removed too. Which means those gaskets should have
been replaced.

A couple of possibilities, the old gaskets may have been reused. Not a good practice, but occasionally the
part comes off without tearing the old gasket and you "might" get by with using the old one.

Another possibility, the gaskets were replaced, but the surfaces weren't properly cleaned, the bolts
weren't properly tightened, the gasket was improperly installed, or there was a problem with the part that
wasn't corrected.

Depending on how long ago the head gasket was replaced, and depending on what is actually leaking, those
type leaks might be covered by a reputable shop. But not actually seeing what is leaking and why it is hard
to say.

If I did a head gasket job, and had leaks, it would be my responsibility to at least look at it and see if
it were something I had done wrong. Not just say "I only replaced the head gasket"!