Hi Edward - welcome to Amiga Love! Thanks for joining.
You've illustrated a lot of different issues. Let me try and parse some of them as best I understand them.
First of all - on your Amiga 1000 - are you loading a Kickstart 1.3 disk
first before doing anything? (and not Kickstart 1.1 or 1.2... 1.3 is the best option)
The process for
some games works like this.
1) Turn on your Amiga 1000
2) Wait for the Kickstart Prompt screen
3) Insert your Kickstart Disk (ideally 1.3)
4) Wait
5) You're then offered another prompt to insert your Workbench disk.
Now, this right here is where things get funky. Some really old games were made BITD (back in the day) to be booted in the floppy drive when you turn the machine on (if you had a 500 or 2000, etc.). They won't work if you try and launch them from Workbench. They may even say something like DF0:NDOS under the icon in Workbench. But the 1000 is different. It needs that Kickstart disk first before you can do anything - including using a disk that was meant to be booted when you turn the machine on. It has no Kickstart ROM on the motherboard like all other Amigas, so it needs to be loaded into your machine's RAM.
For some old games on the 1000, when it asks for the Workbench disk
that's when you insert the game disk. Off the top of my head (I'm at work) I believe Earl Weaver baseball can indeed be launched from the Workbench screen, though.
So, after you insert your WB disk (step 5) and load that into memory, you then would insert Earl Weaver (finally!).
Now here's the kick in the face. If you only have 256KB of RAM, it's very possible that many games will need more than your machine is currently providing to work at all - the games may simply fail to launch because you're out of RAM. The Amiga 1000 comes with 256KB of RAM, but you've just loaded Kickstart AND Workbench into memory, so you're already playing with a less than full deck by at least 120KB or so.
My Amiga 1000 has 2 RAM expansions. One is a very common expansion of 256KB that fits behind a plastic cover on the front of the machine. My second expansion is .5MB that fits into a port on the right side of the machine. That gives me a total of 1MB. After loading KS and WB, I typically will see that I have about 850KB free.
In other words, I am wondering if your machine is simply running out of memory to read those games.
That'd be my first guess.
I apologize if I'm telling you stuff you already know. You say you're new to the scene so I'm going to assume you need lots of info, not cryptic snippets. So I may give you more than you're looking for...
Now, you also say this:
I also have a copy of Earl Weaver baseball but I don't know what settings to use in Earl Weaver to get Earl Weaver to work with kick start rom 3.1
Are you trying to play Earl Weaver on your 1000? If so, there is a 99.9% chance your 1000 is wanting to run 1.3, not 3.1. Your Amiga 1200, however, is very likely running 3.1.
IIRC, Earl Weaver was created for 1.3 in mind but
should work on your 1200. I would have to verify that when I get home. Some of the really old games written back in the 80s do not like 3.1 and just won't work. Don't ask me why, but this is especially true of many games made in the UK (arcade ports are notorious for this as many were rushed to production under insanely unrealistic deadlines with no budget).
Installing Games
Some games came right out of the box with the ability to install to hard drives. They would often each have their own very specific and peculiar ways of doing this. Frankly, some are so strange that if you lack the original installation instructions, you'd likely never figure it out on your own. Then there are some that can simply be copied. Then there are some that actually would have install programs that did everything for you. These usually came from bigger game shops. And then there are many that were never made to be run on a hard drive. But as LambdaCalculus mentioned above, a program (which is very complex) was created where many of these games
can be put on a hard drive. But I probably would stick to the basics if you're just getting started and play these as if you're living in 1990 and WHDLoad didn't exist. At least, for now.
In any case, PGA Tour requires a minimum of 512KB of RAM to play, so you can't play it on your 1000 until you source some RAM. (I have an extra front-loader RAM expansion I could sell...)
Here are the instructions. This game apparently writes to the floppy, so you're encouraged to copy your disks and play off the copies. And again, keep in mind that the instructions for 1000 users assume you have more RAM than you do. I have no idea if PGA Tour - as originally written - works OK with 3.1 on your 1200.
Hope this helps, and let us know if you have any other questions.
Cheers - and welcome to the community!
NOTE;
You mention you got a hard drive for your 1000. Can you post a picture of it here, and let me know the brand? That is one component my 1000 is sorely lacking and finding an original solution is very, very difficult. I'd be curious what you've got.