With Boardingware you can easily see the leave history of any child that is connected to your account
Click 'Leave History'
Click to see the details associated with that leave.
Swipe left on the screen to navigate away from the leave page into your profile, and then tap 'My Students'
Select Leave History
Tap to see the details associated with that leave, or click on the date range to expand it, to then see the leave details.