I'm doing a school project on four fictional people who are about to retire in 2020 and have worked since 1975. Three of them consistently invested $1,000 per month (adjusted for inflation) into their stock portfolio while one person kept it in his bank account. Two of them stubbornly invested in two randomly picked stocks and stuck with them unless the company went bankrupt and the third one was more of a gambler.
The problem I'm facing is that I have no idea what kind of stocks someone would have invested in in the 70s. I can't use current stocks since that would be survivorship bias.
What would someone living in the 70s and onwards have realistically invested in? I need a set of about 50 stocks.