hi, ceeoh, smith and burnside are old romany names, i myself am related to both. they also come from the county durham area.as to the name change,if it was a long time back, men and women both re married soon after losing a partner,there was no benefits or aid so they would need support and help with living costs, and would remarry, often very quickly.also travelling women would, and still do, go by there maiden names. so a girl could be known as burnside and smith at the same time ie annie burnside,would still be called that even though she wed a smith, any other name may be again, be that she remarried more than once.my own g.grandfather on both maternal and parernal sides was was married three times to gypsy women. and my g.mother twice it was the norm in victorian times and futher back. as to the marriage certs item, as romanys moved around a lot and they can be hard to trace,but romany people are very strict and nearly allways were married,as opposed to living together.good luck. rob g
