Translation help

[Michael Mortensen]

Could somebody please translate the following:

stammer dine aner fra Kølstrup sogn, jeg har deres forlovelse til 1.august 1788 men ikke dato for ægteskab, men Maren hansdatter´s mor skulle være Kirsten Jensdatter f.19.01.1727. har du nogen sammen faldende maths
venlig hilsen

Tak
Michael Mortensen
Gilford New Hampshire USA

[Ole Westermann]

Michael,

Here's my proposal:
If your ancestors are from Kølstrup parish, I have their engagement on Aug.1,1788, but no date for their marriage, and Maren Hansdatter's mother should be Kirsten Jensdatter, born Jan.19,1727. Do you have any merging data ?
Kind regards

Ole