Re: Confusing filter result

 You could use a rule created to make Person custom filters specifically for such a purpose.
This rule is better than w because it doesn't require both a Birth and Death events to exist.  It can consider the people around each person too.

In the People view:1) create a custom filter. (With a freshly Rest filter gramplet, click the Edit icon at the far right of the Custom filter; or, Select "Person Filter Editor" from the Edit menu.) 
2) Define a name ( a comment is also a good thing) like "Alive in 1921"
3) Add a rule to the Rule List4) find the "People probably alive" rule (It is under "General' but the easiest way is to type 'alive' in the text field at the top beside the Magnifying Glass icon.)5) select the "People probably alive" rule6) enter ' June 1921" for the "On date:" 
      (Given how often people 'fibbed' about Ages, I might use "between 1919 and 1923" instead)
7) click 'OK' to commit the rule to the list8) click 'OK' to commit the filter definition9) click 'Find' to locate the appropriate people
Because this is a complex filter, you would be well advised to take advantage of the "Add/Remove Tag Tool" 3rd Party Add-on Family Tree Processing -> Tool. Using the Filter Gramplet to filter on a Tag rather will be much faster than a Custom Filter. The performance benefit multiplies when the view repeatedly refreshes.




    On Tuesday, December 20, 2022 at 01:05:28 PM CST, Harvey Nimmo <[email protected]> wrote:  
 
 I thought I could use the filter form simply to find out which  
persons in my database should appear in the 1921 UK Census, i.e. who
was alive on 2021-06-19, so that I could go to, say, Scotlandspeople
and get their census data.

It seemed logical to enter into the filter form Birth date = before
1921--06-21 and Death date = after 1921-06-19 and Gender = any. Nothing
else.

But the filter returned only a limited number of the people who
satisfied the filter criteria. Birth and death dates had been entered
correctly and completely for a number of other people who should have
been listed. 

Why is this not working as desired? I confirm that the birth dates are
not baptisms and death dates are not burials for the missing cases.
Some of these were people for whom I had already entered the 1921
Census data.

I never cease to get frustrated with the filter function.;-(

Cheers
Harvey







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