I checked a book on the KLAHR surname and did not find anything. KLAHR was and in some places, still is pronounced KLAUR. Philip KLAHR, born in Germany, 1736 and came over to Pennsylvania in 1752 had his name spelled various ways ( CLAWR, GLARR, KLAR, KLARR, KLARE, KLAUR and KLAAR ). A lot of the KLAHRS were from Berks County, Pennsylvania and settled in Ohio. Most settled in Pickaway and Fairfield County areas.