my grandfather frank plattenbn10/8/1891 in carro,mass died in the 70's. had 2bro.2sis.david,morris,francis and rose.i was told they were from boston,mass. i actually talked to morris sis-in-law in the hollywood area,since she was up in age she couldnt tell me alot. i found sonny in massachussetts. he also not having a good memory. my main concerne is locating my half bro. robert l.platten he should be in his 50's . any info. would be appriciated.