The reason for the correction of names of people and places is simply to
preserve the original and / or to obatin beter meaning. Bet Leḥem for
instance means House of Bread. Leḥem is Bread and can also be used wider for
food. The word "LEHEM" though without the gutteral "ch" sound has no meaning.
The Hebrew letter that is normally translated with an "H" can be pronounced as a
"CH" or "H", depending on the word and syntax.