This question is from a newbie on the scene so excuse my ignorance! Just out of interests sake are there any female uke Luthier's? Whether that be famous or for fun.
In addition to the names mentioned above, Linda Manzer builds fine Guitars, one of her specials is the "Little Manzer", a Guitar in the size of a Tenor Ukulele. So does Peggy White in Canada. She calls her 1/4 sized Guitar a "Soprano".
Rather more local to you there is Lucy Wise who sometimes helps her father Scott Wise in his Margret River workshop. I think Lucy is in Melbourne these days.