I would do the following :
In my app data folder say on
d:\myapp\data
Create a
Persons
folder and in it a
<id>
folder for each person in my database i.e.
d:\myapp\data\Persons\1234
Into which I would save any files and directory structure I need e.g. :
d:\myapp\data\Persons\1234
|-InfoFolder
| |-file1.doc
|
|-SomeOtherFolder
And store the relative files paths in my database i.e
InfoFolder\file1.doc
,
SomeOtherFolder\filexyz.doc