WATERLOO â Some of the top names parents in the Cedar Valley gave to their newborns in 2020 wouldnât have been out of place as far back as the 1880s. Amelia, Lilly, Oliver and Jackson were the most popular names for babies born at UnityPoint-Health Allen Hospital and MercyOne Waterloo Medical Center this year, according to both hospital systems, which released the top names of 2020 this week. The most popular names at UnityPoint for female babies were Amelia and Charlotte, followed by a five-way tie for third of Clara, Olivia, Elizabeth, Avery and Mia. The top name for male babies was Oliver â also the top name of 2019 â followed by Liam, Theodore, Brooks and a two-way tie for fifth of Owen and Lincoln.