Very interesting. Obama Sr applied for extension on 4/21/1964 wherein he claimed that he & his American wife, Ann, had been separated for 2 mths. However, the divorce documents show Ann had applied for divorce on Jan 20, 1964 & the divorce was granted & the judge signed off on it on April 20, 1964. So it seems Sr got caught in a wee bit of a lie about his marital status regarding his American ex-wife, Ann.
http://www.freerepublic.com/focus/news/2306351/posts?page=2222#2222
On the bottom of the Divorce Decree it is dated the 20th day of March.