1947 June 7, Peggy Durdin, “Taiwan : China's Unhappy Colony”, in The Nation[1], volume 164, number 23, New York, page 686:
Since many factories have not been repaired or are operating at low capacity, there is much unemployment. Repatriation of overseas Taiwanese has aggravated the problem, which the government has made no real effort to solve. During the war the Japanese built at Chiayi a large factory for making high-octane gas. Now it is closed, and one-fifth of the town's population are out of work. It is not surprising that at Chiayi last month there was fierce fighting against the mainlanders.
Hakka: 外省人(ngoi-sén-ngìn)(Taiwan, referring to Chinese mainlanders), 阿山仔(â-sân-é)(Taiwan, derogatory, referring to Chinese mainlanders), 長山仔 / 长山仔(Chhòng-sân-é)(Taiwan, derogatory, referring to Chinese mainlanders)
Hokkien: 大陸人 / 大陆人(tāi-lio̍k-lâng), 外省人(gōa-séng-lâng)(Taiwan, referring to Chinese mainlanders), 唐山人(Tn̂g-soaⁿ-lâng)(Taiwan or overseas, dated, referring to Chinese mainlanders), 阿山(仔)(a-soaⁿ[-á])(Taiwan, derogatory, referring to Chinese mainlanders), 阿六仔(a-la̍k-á), 阿陸仔 / 阿陆仔(zh-min-nan)(a-la̍k-á)
Mandarin: 大陸人 / 大陆人(zh)(dàlùrén), 外省人(zh)(wàishěngrén)(Taiwan, referring to Chinese mainlanders), 唐山人(zh)(tángshānrén)(Taiwan or overseas, dated, referring to Chinese mainlanders), 26(zh)(èrliù)