Maria) Nice that you brought that up...I'm by no means alone when having given some thought about how I would handle someone from the past (OTMA or otherwise) brought into 2012, even though most of my dreams have dealt with the opposite scenario...me going back in time to meet them instead of the other way around.
It would be quite a challenge, and one we have discussed on other topic forums, but I would do my best to ease them into their new reality. I might even spend several months getting them slowly accustomed to things and brought up to speed. Using the IF as an example, and if money were no object (let me sell some of your jewels girls!), I'd probably purchase a cottage or estate out in the countryside surrounded by nature and with limited exposure to the outside world.
History would be the main topic...90+ years of it on literally hundreds of topics. I'd also spend some time each day introducing to them a new gadget, synthetic material, new food, etc. Get them familiarized with it. This would be a long and often arduous process, but over several months of learning in living conditions not all that dissimilar to what they were accustomed to in their day I think they'd finally be ready for a trip to the great places & cities of the world.