You can also put the standard reference tags attached to the caption since I think you are trying tp embed the image somewhere in the biography.
{{Image
|file=Maps_of_Places_the_Jenkins_Family_Lived-1.jpg
|align=c
|size=600
|caption=Places the Jenkins Family Lived. <ref>Mississippi Map in 1860.</ref>
}}
You can also control whether text wraps around the picture with |wrap=(y or n)
{{Image
|file=Maps_of_Places_the_Jenkins_Family_Lived-1.jpg
|align=c
|size=600
|wrap=y
|caption=Places the Jenkins Family Lived. <ref>Mississippi Map in 1860.</ref>
}}
Just take this formatting and play with it until it looks like what you want.