library(tidyverse)
test_data <- tibble(A = c("91884", "", NA, "091884", "09984", "090984", "09/18/1984", "1984-09-18", "9/18/84", "9/9/84", "9-9-84", "9-18-84", "12-18-84"))
test_data %>%
parse_date_col(A)
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