I started researching in 1990. During Spring Break I flew to Indy to research the family. The State Library had closed stacks and the Archives were in a couple of small rooms, I think, in the State Library before it was remodeled into the nice facility it is today.
Marriage applications were stored there then and I was able to access and copy my paternal grandparents' app. It was an original document and white gloves had to be used in handling it. Now the applications are on microfilm at the Records archive in the City-County Building.
I made some nice discoveries, considering I had no idea what I was doing.