Yes, It's easy Barbara. Go to the data base, click on Irises in the Box on the right that says, "visit our custom data bases" . Then click on "Search by characteristics (height, bloom color, etc)". There will be a list of characteristics to check, in the box that says "Hybridizer" type in Thomas Johnson, and then go farther down and if you only want just TB's click on that box, if you want all of them, don't select anything there, but go to the bottom of the page and click the Search button, and you will get a list of all of his irises. Have fun!