Carrying on working with dates, we can look at birth dates as well.
You can download the dataset for these queries here.
You can cross-reference the queries to the book by query number or name.
Query ch6.18 Youngsters East of Eden 
Filtering on birth dates, we can find people born after a specific date.
Query ch6.19 Children of the Sixties
When we have multiple filters, all of them must be satisfied.
Query ch6.20 Children of the Sixties (alt)
We can also use logical connectors to combine tests.