What inferences can you make about Abraham Lincoln’s intended audience? In other words, who would read this text and why? How can you tell?

The correct answer to this open question is the following.

Unfortunately, you forgot to specify to what address you are referring. Abraham Lincoln delivered too many speeches throughout his political career.

What was the speech? Where is it?

However, trying to help you, we are going to assume you are referring to the Gettysburg Address. If that is the case, then we can comment on the following.

Abraham Lincoln’s intended audience was the American people, including the people who lived in the southern territories. President Lincoln was calling people to unite again, despite their differences.

Lincoln structured his speech chronologically speaking about the past present and future.

During his "Gettysburg Address," President Abraham Lincoln makes a recount since the signing of the Declaration of Independence to actual events. Indeed, he began his speech by saying "Fourscore and seven years ago..." and then he refers to the founding father's creation of the new United States, a country of freedom, rights, and liberties. The speech was delivered on November 19, 1863, next to the battlegrounds of Gettysburg, one of the bloodiest battles of the Civil War.

The speech was so short, simple, but powerful.

the confederates at fort sumter.

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.