My mother Eula Virginia Wetz(b) Hill(1) Santor(2) gave me a practical education in genealogy by taking me down to the old San Antonio public library circa 1980 and looking through rolls and rolls of national census data on microfiche. Then making a copy of page by take several snapshots and taping them all together form a picture copy of that page - what a lesson. I think each individual 8.5x11 paper copy was 10 cents, maybe? This is back when my school lunch in 5th grade was $1.00, this I remember.