The remains found in a Plantation canal on Sunday are those of a mother and her child who disappeared 50 years ago, according to Plantation Police. The 35-year-old woman and her 3-year-old daughter were reported missing from their residence located at 13411 NW 2nd St. in Plantation, back in 1974. The mother’s 1961 Chevrolet Impala was also nowhere to be found, police said.