left lookup

I am trying to lookup the text that sits in the column to the left of a range of dates. Basically I want to find the most recent date (currently using =max) from the date column and return the text immediately to its left. I think I need to use the left lookup function but am new to Excel do is a bit beyond me! I want to return the data in column E of 'Master' worksheet.

Spreadsheet attached, see worksheet '001' E1:F19 for data range

Thanks