After Angelina Jolie and Brad Pitt named their son Knox, the name reappeared in the Top 1000 American baby names, rising to No. 245 by 2016
Right around 1993, Kendall’s popularity as an American boy’s name began to decline as its popularity as a girl’s name rose.
Between 1952 and 2009, Kelvin floated around the Top 500 most popular American baby boy name list, ranking anywhere from No. 207 to No. 478
Kelsey is a unisex name. As a boy’s name, it has been in the American Top 1000 since 1970
Journey made its first appearance in the Top 1000 American baby girl names in 1999 at No. 953. By 2016, it was No. 264
Jerold’s popularity as an American baby boy name fluctuated from a high of 404 to low of 991, between 1928 and 1972
Jasper, a very popular 19th century male name, steadily climbed from No. 567 in 2006 to a new high– No. 209 in 2016
Jackson jumped into the Top 100 American baby boy names in 1998 for the first time; by 2010, it was in the Top 25.