Question: What penicillin developing scientist had an electoral district ,which includes a residential suburb split between the City of Salisbury and the City of Tea Tree Gully, named after him in South Australia?
Sentence (from "Electoral district of Newland"): It is a 69.3 km² suburban electorate in north-eastern Adelaide, taking in the suburbs of Banksia Park, Fairview Park, Lower Hermitage, Upper Hermitage, Houghton, St Agnes, Surrey Downs, Tea Tree Gully, Vista and Yatala Vale as well as parts of Chain of Ponds, Highbury, Hope Valley, Inglewood, Millbrook, Redwood Park and Ridgehaven.
Relevant evidence: No