Align marginpar with top of current paragraph

Question

I am using \usepackage{backref} to create a back reference in my bibliography. That part is working fine. I am now attempting to use \marginpar to have those references show in the margin, like so:

That, too, works pretty much as expected, with one big exception: as you can see, the references are aligned with the bottom of the entry. Is there a way to have them align with the top? I could simply push then up a few lines with \vspace{}, I suppose, but there is no way to know how many lines either the main entry or the backreferences will be taking.

This is the code I am currently using:

\leavemode
    \marginpar{
        \raggedright 
        \scriptsize S.~#2
              }

Answer 1

You didn't give an MWE as a starting point, so I did something here with the article class to show how a margin note can be bottom justified.

I realize this isn't exactly what you asked, but without knowing more about how to even create what you showed in your example, I thought, with the black bar already at the bottom of the entry), that this might be a suitable option.

\documentclass{article}
\usepackage{lipsum}
\usepackage{stackengine}
\newcommand*\mnote[2]{%
  \if l#1\reversemarginpar\fi%
  \if r#1\normalmarginpar\fi%
  \savestack{\mybox}{\parbox[b]{1.8cm}{\raggedright\scriptsize#2}}%
  \marginpar{\belowbaseline[-\ht\myboxcontent]{\mybox}}%
}
\parskip 1em
\begin{document}
\lipsum*[1]\mnote{l}{some text for the mnote box}

\lipsum*[2]\mnote{r}{Here is another marginnote on the right}

\lipsum*[2]\mnote{r}{another mnote box test testing the right side}
\end{document}