Simplify the following text for a Grade 11 native English-speaking person.
Original: Sources disagree as to whether Ah Bing was responsible for developing the cultivar , or whether it was developed by Lewelling and named in Bing 's honor due to his long service as orchard foreman .
Simplified: Some say Ah Bing developed the cultivar , others that it was developed by Lewelling and named in Bing 's honor due to his long service as orchard foreman .