Here are two different yarns I have purchased to potentially be used for knitting non-wool ganseys:
The yarn on the left is Luscious by Kollage. It is a fingering weight blend of 63% cotton and 37% nylon. It looks to me like a heavy fingering weight. The suggested gauge is 6 to 8 stitches to the inch.
It’s an interesting yarn — even though it has a high nylon content it doesn’t feel terribly stretchy in the skein. The Loopy Ewe currently has it on sale because they are going to stop carrying it.
The yarn on the right is Skinny Cotton by Blue Sky Alpacas. It is DK weight and 100% cotton. It’s suggested gauge is 5 to 6 stitches to the inch. I’m really looking forward to trying this out as I’ve heard lots of good things about it. Here is its page on Ravelry — consistently good reviews with a couple of complaints about it being splitty. There are many many projects knit from it on Ravelry.
As far as current knitting goes, I am working on the front of Cromarty:
While Lucy watches from her perch.