It appears they are correct from the data sheet. The circle centers are 1.31in (33.32mm) apart:
I would check that your print out is indeed 1:1 scale, if that is off so will the hole spacing be. An alternative check is to export the gerber files (which are in 1/1000 of an inch) and check the spacing in the gerber files (although that isn’t all that easy!) It also looks correct in the gerber output drill.txt file:
; NON-PLATED HOLES START AT T1
; THROUGH (PLATED) HOLES START AT T100
M48
INCH
T1C0.125000
T100C0.035000
T101C0.125000
%
T1
X022938Y011217
X009823Y011217
022938 - 009823 = 13115 (or 1.3115 in as this is in 1/1000 of an inch) which also looks correct from the data sheet.
T1C at 0.125 in is the two larger holes the x coords are the distance between them.
Unfortunately making (or even modifying) parts is not easy. This tutorial covers the steps needed and you need to run the finished part through FrtizingCheckPart.py to correct the problems that Inkscape (and probably the other svg editors) introduce for CSS compliance (which Fritzing doesn’t care about!)
Peter