I would like some way to easily track what facts are "missing" from a person. Could be a census year, a military record, a vital record but depending on when they live there is different data that I should be able to find to source the individual (e.g. someone who died in 1650 won't have a US census). Whether manual or automatic there are lots of options here but I would like to find all of the obits I'm missing before I go to the library to track them down, or focus on missing census years as a group. I can sort of due this with tasks but they are not grouped and I have several hundred tasks so painful to track this way as this would easily grow to thousands of tasks if I used tasks.