Hi Peggy! Maybe you have been on before and I just don't remember...but just in case...
Your yellow iris is very pretty!
I'm sorry to say the name Golddigger is not correct. There is not an iris with that name spelled as one word, but there is one spelled 'Gold Digger'. It is a dwarf variety that is usually 10 inches tall (see below).
If you have more pictures in different light and from different angles you could try posting them on the thread about Historic Irises. Maybe someone who grows a lot of them might recognize it. But to be honest it is very difficult to identify an iris from a photograph unless it is an unusual cultivar. There have been many hundreds of yellow irises introduced and the database of photographs is not complete. At best what you get is an educated guess.
It's normal to want to put a name to them. You may just need to enjoy your irises for what they are, beautiful flowers that have been left in your care. Good Luck!